Spanish adjectives behave differently from English adjectives in two big ways: they agree with the noun they describe in both gender and number, and they usually go after the noun rather than before it. Un coche rojo, not a red car in that order — first the car, then the colour. And the colour itself shifts shape depending on what it's attached to: un coche rojo, una casa roja, unos coches rojos, unas casas rojas. Four forms of the same word, controlled entirely by the noun.
This page covers the basic adjective system you need at A1: the main shape classes (four-form, two-form with its consonant-ending exceptions, and invariable), how plurals work, the default after-the-noun position, and the small group of adjectives that change meaning when you put them before the noun. The detail pages cover each piece more thoroughly; this is the map.
What "agreement" means
When a Spanish noun has gender and number, every adjective attached to that noun has to carry the same gender and number. Casa is feminine singular, so casa blanca (white house) needs the feminine singular form blanca. Casas is feminine plural, so casas blancas needs the feminine plural form blancas. Libro is masculine singular, so libro blanco gets the masculine singular blanco. Libros is masculine plural, so libros blancos gets blancos.
The adjective does not choose its form independently — it inherits gender and number from the noun. This is unlike English, where white is just white regardless of whether the noun is cat, cats, table, or tables.
El coche rojo es de mi padre.
The red car is my father's. — Coche (masculine singular) → rojo (masculine singular).
La casa roja es de mis abuelos.
The red house is my grandparents'. — Casa (feminine singular) → roja (feminine singular).
Los libros rojos están en la estantería.
The red books are on the shelf. — Libros (masculine plural) → rojos (masculine plural).
Las flores rojas son de mi jardín.
The red flowers are from my garden. — Flores (feminine plural) → rojas (feminine plural).
If you write la casa rojo or los libros roja, you have produced a gender mismatch — the equivalent of saying a apples in English. The mismatch is small but immediately audible to a Spanish ear; getting agreement right is one of the fastest ways to lift your perceived fluency.
The three shape classes
Not all Spanish adjectives have four forms. Some have only two (the same form for both genders, two for number), and a few are invariable (one form for everything). Knowing which class an adjective belongs to is part of learning the word.
Class 1: four-form (-o / -a / -os / -as)
The most common pattern. Adjectives ending in -o in the masculine singular have four forms in total.
| Masculine | Feminine | |
|---|---|---|
| Singular | rojo | roja |
| Plural | rojos | rojas |
Examples: bueno, malo, alto, bajo, guapo, feo, gordo, delgado, nuevo, viejo, barato, caro, limpio, sucio, rico, pobre (wait — see Class 3 for pobre).
Mi vecino es muy alto y simpático.
My (male) neighbour is very tall and friendly. — Vecino is masculine singular, so alto and simpático take the masculine singular ending.
Su novia es alta y guapa.
His girlfriend is tall and pretty. — Novia is feminine singular, alta and guapa agree.
Tienen unos hijos muy guapos.
They have very good-looking kids. — Hijos (masculine plural) → guapos.
Las playas españolas son muy bonitas.
The Spanish beaches are very beautiful. — Playas (feminine plural) → bonitas, españolas.
Class 2: two-form (-e or consonant ending, single form for both genders)
A lot of Spanish adjectives have one form for both genders and shift only for number. These are adjectives that don't end in -o in the masculine — typically ending in -e or in a consonant.
Adjectives ending in -e:
| Singular | Plural | |
|---|---|---|
| (masc. & fem.) | grande | grandes |
Grande, fuerte, débil (wait, that's a consonant — see below), amable, interesante, importante, inteligente, valiente, alegre, triste, verde, libre, pobre.
Mi padre es muy amable y mi madre es muy amable también.
My father is very kind and my mother is also very kind. — Amable is identical for both genders; only the plural form (amables) changes.
Las personas inteligentes a veces son aburridas.
Intelligent people are sometimes boring. — Inteligentes is plural; gender is invisible on this adjective.
El chico es interesante y la chica también es interesante.
The boy is interesting and the girl is also interesting. — One form for both genders.
Adjectives ending in a consonant also use one form for both genders in the singular:
| Singular | Plural | |
|---|---|---|
| (masc. & fem.) | azul | azules |
Azul, gris, marrón, verde (this one ends in -e), feliz, capaz, fácil, difícil, joven, igual, principal, fundamental, leal, cruel, fiel.
El coche azul y la casa azul son míos.
The blue car and the blue house are mine. — Azul, singular, identical form for both genders.
Es un chico joven y trabajador.
He's a young, hard-working guy. — Joven (singular, consonant ending). Trabajador, however, is class-4 — see exceptions below.
Tengo dos hermanas jóvenes y felices.
I have two young, happy sisters. — Plurals: jóvenes (accent shifts to keep stress) and felices (z → c before -es).
Inside Class 2: consonant-ending adjectives that DO mark gender
A trap inside the two-form group: some consonant-ending adjectives DO have separate feminine forms despite the consonant ending, behaving like four-form adjectives. Specifically:
- Nationality adjectives ending in a consonant: español → española, inglés → inglesa, francés → francesa, alemán → alemana, portugués → portuguesa, japonés → japonesa.
- Adjectives ending in -or: trabajador → trabajadora, hablador → habladora, encantador → encantadora, conservador → conservadora. (Comparative forms like mayor, menor, mejor, peor are exceptions to the exception — invariable for gender.)
- Adjectives ending in -án, -ín, -ón: holgazán → holgazana, charlatán → charlatana, juguetón → juguetona.
Mi amigo es español y su novia es española.
My friend is Spanish (m.) and his girlfriend is Spanish (f.). — Nationality adjective with separate feminine form despite ending in a consonant in the masculine.
La profesora es muy trabajadora e inteligente.
The (female) teacher is very hard-working and intelligent. — Trabajadora has a feminine form; inteligente is invariable.
Es una chica encantadora y muy habladora.
She's a charming and very talkative girl. — Both -or adjectives take feminine -ora.
Class 3: invariable adjectives
A small group of adjectives never changes form, regardless of gender or number. Most are:
- Some colour adjectives derived from nouns: naranja (orange), rosa (pink), violeta (violet), café (brown, less common in Spain). El coche rosa, las casas rosa — same form throughout.
- Compound colour adjectives: azul claro, verde oscuro, gris marengo — the modifying part keeps the whole phrase invariable.
Llevaba unos zapatos rosa muy bonitos.
She was wearing some really nice pink shoes. — Rosa is invariable; zapatos is masculine plural but rosa doesn't change.
Tengo dos camisetas naranja y tres pantalones azul oscuro.
I have two orange T-shirts and three dark blue trousers. — Naranja invariable; azul oscuro invariable as a compound.
Forming the plural
Spanish plural formation for adjectives is identical to plural formation for nouns:
- Adjective ends in a vowel → add -s. Rojo → rojos, grande → grandes, bonita → bonitas.
- Adjective ends in a consonant → add -es. Azul → azules, joven → jóvenes, feliz → felices.
- Adjective ends in -z → change to -c- and add -es. Feliz → felices, capaz → capaces, audaz → audaces.
There are two spelling/accent details worth knowing from day one:
Accent shift on plurals. Some adjectives gain or lose an accent in the plural because the syllable count changes. Joven (one syllable stress, no accent needed) → jóvenes (now three syllables, accent appears to keep stress on the same vowel). Francés (accent on the é) → franceses (accent disappears because the stress is now naturally on the penultimate). Stress location doesn't change; only the written accent moves to obey the spelling rules.
The -z → -ces rule. Spanish never writes -zes. Feliz plural is felices, not felizes. Vez (noun, time) is veces. Lápiz (pencil) is lápices. This is a universal spelling rule across the language.
Es un día feliz para todos los niños felices.
It's a happy day for all the happy children. — Feliz → felices in the plural (z to c).
Mis amigos jóvenes son muy alegres.
My young friends are very cheerful. — Jóvenes with accent; alegres just adds -s.
Tengo cuatro lápices azules y dos rojos.
I have four blue pencils and two red ones. — Lápices (z → ces), azules (consonant + -es), rojos (-o → -os).
Position: after the noun by default
The unmarked, neutral position for a Spanish adjective is after the noun. Un coche rojo, not un rojo coche. Una casa grande, not una grande casa. This is the opposite of English, where the adjective is unmarkedly before the noun.
Vivo en una casa grande con un jardín pequeño.
I live in a big house with a small garden. — Both adjectives follow their nouns.
Compré un coche azul muy bonito y barato.
I bought a really nice and cheap blue car. — Three adjectives, all after the noun. (Multiple post-nominal adjectives can stack with no problem.)
Los estudiantes españoles son simpáticos.
The Spanish students are nice. — Adjective españoles after estudiantes; predicate adjective simpáticos after the verb son.
The after-the-noun position is the descriptive position — it tells the listener what kind of thing the noun is, distinguishing it from other instances. Un coche rojo is a red car (as opposed to a blue one). Un estudiante inteligente is an intelligent student (as opposed to a less intelligent one).
Before the noun: a different shade of meaning
Some adjectives can also go before the noun, but doing so changes the flavour of the sentence. Pre-nominal adjectives tend to be non-restrictive (describing an inherent quality, not distinguishing this instance from others) or emotional/poetic (expressing the speaker's evaluation).
Vimos la blanca nieve en la montaña.
We saw the white snow on the mountain. — Pre-nominal blanca is poetic/literary; the implication is that all snow is white, this is its inherent quality.
Vimos la nieve blanca y la nieve sucia.
We saw the white snow and the dirty snow. — Post-nominal blanca is restrictive; it distinguishes this snow from the dirty snow.
For A1 learners, the rule is simple: put adjectives after the noun by default. The pre-nominal position is a stylistic and advanced choice that can wait until B1+.
The exception: meaning-changing adjectives
A small but important group of adjectives change meaning depending on whether they sit before or after the noun. The pre-nominal meaning is usually figurative or evaluative; the post-nominal meaning is usually literal or factual.
| Adjective | Before noun | After noun |
|---|---|---|
| grande / gran | great (in importance) | big (in size) |
| bueno / buen | good (qualitatively/morally) | kind / nice (often of people) |
| viejo | longtime (friend) | old (in age) |
| pobre | unfortunate (pitiable) | poor (without money) |
| nuevo | another, different (a different one) | brand new (newly made) |
| mismo | same (as another) | him/her/itself (emphasis) |
| antiguo | former | ancient |
| único | only (sole) | unique (one of a kind) |
Madrid es una gran ciudad.
Madrid is a great city (in importance and quality).
Madrid es una ciudad grande.
Madrid is a big city (in size).
Mi viejo amigo Javier viene a cenar.
My old (longtime) friend Javier is coming to dinner. — Viejo here means 'longtime', not 'aged'.
Es un amigo viejo, ya casi no sale de casa.
He's an old (elderly) friend, he hardly leaves the house anymore. — Post-nominal viejo means he's advanced in age.
¡Pobre Marta, ha perdido el trabajo!
Poor Marta, she lost her job! — Pre-nominal pobre = pitiable.
Marta es una mujer pobre, vive del salario mínimo.
Marta is a poor woman, she lives on minimum wage. — Post-nominal pobre = lacking money.
This is one of the genuinely tricky parts of the system, and the detail page on meaning change by position covers all the cases.
Shortened forms before masculine singular nouns
A handful of common adjectives drop their final letters when they sit before a masculine singular noun. This is called apócope. The most important:
- bueno → buen before masculine singular: un buen día, un buen chico.
- malo → mal before masculine singular: un mal día, un mal momento.
- grande → gran before any singular (masc. or fem.): un gran amigo, una gran ciudad.
- primero → primer before masculine singular: el primer día, el primer paso.
- tercero → tercer before masculine singular: el tercer piso, el tercer hijo.
- alguno → algún, ninguno → ningún before masculine singular: algún día, ningún problema.
- santo → san before masculine names: San Juan, San Pedro (but Santo Tomás, Santo Domingo — names starting with To- or Do- keep santo).
Hoy es un buen día para salir a pasear.
Today is a good day for a walk. — Bueno → buen before un día (masc. sg.).
Es un mal momento, ¿podemos hablar después?
It's a bad time, can we talk later? — Malo → mal before un momento.
Es la primera vez que vengo a Sevilla.
It's the first time I've come to Seville. — Primera does NOT shorten before feminine; only the masculine has the apócope.
Es el primer día del curso.
It's the first day of the course. — Primero → primer before día (masc. sg.).
The detail page on shortened forms covers all the apócope rules.
When the modified noun is mixed-gender
If an adjective modifies two nouns of different gender, the adjective takes the masculine plural. This is the standard rule, regardless of which gender appears first.
El padre y la madre son simpáticos.
The father and the mother are nice. — Mixed-gender subject, adjective in masculine plural.
La casa y el coche son nuevos.
The house and the car are new. — La casa (fem.) and el coche (masc.); adjective nuevos in the masculine plural.
Los chicos y las chicas están cansados.
The boys and the girls are tired. — Cansados, masculine plural by default for mixed groups.
Common Mistakes
❌ La casa rojo es de mis padres.
Gender mismatch — rojo (masculine) clashes with casa (feminine).
✅ La casa roja es de mis padres.
The red house is my parents'. — Roja agrees with the feminine noun.
❌ Los libros son interesante.
Number mismatch — interesante is singular, libros is plural.
✅ Los libros son interesantes.
The books are interesting. — Interesantes in the plural, although gender stays invisible on this two-form adjective.
❌ Un rojo coche.
Wrong position — colour adjectives go after the noun in Spanish by default. Pre-nominal sounds wrong or comically poetic.
✅ Un coche rojo.
A red car. — Post-nominal is the unmarked, natural order.
❌ Es un bueno chico.
Bueno must shorten to buen before a masculine singular noun.
✅ Es un buen chico.
He's a good guy. — Apócope of bueno → buen before chico.
❌ La gran ciudad de Madrid es grande.
Not strictly wrong, but the contrast can sound clumsy. Better: pick one position.
✅ Madrid es una gran ciudad. / Madrid es una ciudad grande.
Madrid is a great city. / Madrid is a big city. — Choose based on whether you mean 'important' (pre-nominal) or 'large in size' (post-nominal).
❌ Las niñas son alto y simpático.
Two mismatches — both adjectives are masculine singular but the noun is feminine plural.
✅ Las niñas son altas y simpáticas.
The girls are tall and nice. — Both adjectives in feminine plural to match niñas.
Key takeaways
- Spanish adjectives agree with their noun in gender and number — the noun controls the adjective's form.
- Four-form adjectives (ending in -o): rojo, roja, rojos, rojas. The most common pattern.
- Two-form adjectives (ending in -e or in most consonants): same form for both genders, different for number. Grande, grandes; azul, azules.
- Special four-form: nationality adjectives ending in consonants (español → española) and adjectives ending in -or, -án, -ón have separate feminine forms despite the consonant ending.
- Invariable adjectives: a small group (especially colours from nouns like naranja, rosa) never change form.
- Plural formation: vowel + -s; consonant + -es; -z changes to -ces.
- Default position is AFTER the noun: un coche rojo, una casa grande. Pre-nominal placement is stylistic or restricted to specific adjectives.
- A small group of adjectives change meaning when placed before vs after the noun: grande/grande, viejo/viejo, pobre/pobre, mismo/mismo. Position is meaning.
- Apócope (shortening) happens to a handful of adjectives before masculine singular nouns: bueno → buen, malo → mal, primero → primer, grande → gran (before any singular).
- Mixed-gender subjects take masculine plural adjectives: El padre y la madre son simpáticos.
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Start learning Spanish→Related Topics
- Adjetivos de cuatro formas: -o, -a, -os, -asA1 — Most Spanish adjectives have four distinct forms — masculine and feminine, singular and plural. Master the -o/-a/-os/-as pattern and you've solved the agreement problem for the majority of the adjectives you'll meet.
- Adjetivos de dos formas: invariables en géneroA1 — A large class of Spanish adjectives has only two forms — singular and plural — without distinguishing masculine and feminine. The endings -e, -ista, -ble, and most consonants put an adjective in this group.
- Posición del adjetivo: antes o después del sustantivoA2 — Where Spanish adjectives go relative to the noun, and why position is meaning. The default post-nominal position, when pre-nominal placement is natural, and the patterns that determine which side of the noun an adjective lands on.
- Adjetivos que cambian de significado según su posiciónB1 — A specific list of Spanish adjectives whose meaning shifts depending on whether they sit before or after the noun. Gran hombre vs hombre grande, viejo amigo vs amigo viejo, pobre Juan vs Juan pobre — and ten more pairs you have to know.
- Apócope: formas cortas de los adjetivos (buen, mal, gran, primer, san)A2 — A handful of common adjectives drop their final letters when they sit before certain nouns. Bueno → buen, malo → mal, grande → gran, primero → primer, alguno → algún, santo → san — the rules for when, why, and which gender.
- Género de los sustantivos: visión generalA1 — Every Spanish noun is masculine or feminine — gender drives the article, the adjective, and the pronoun. An introduction for English speakers who have never met grammatical gender before.