Portuguese turns adjectives into abstract nouns with a short list of suffixes. Belo becomes beleza; feliz becomes felicidade; velho becomes velhice; realista becomes realismo. Each suffix has its own semantic colour — -dade feels neutral and conceptual, -eza feels sensory, -ice feels character-judging, -ismo feels ideological — and native speakers intuitively pick the right one for each adjective. Learners have to memorise the pairings, but the patterns are regular enough that recognising them is a major shortcut into B2-C1 vocabulary.
This page covers the main suffixes that form abstract nouns from adjectives, with semantic guidance and reference tables, plus the "bare adjective with article" trick that often serves as a no-morphology nominalization.
-dade / -idade: the workhorse
Far and away the most productive deadjectival suffix is -dade (often appearing as -idade after certain stems). It attaches to adjectives to form an abstract noun naming the corresponding state or quality, and it is the closest Portuguese has to a default nominalizer. The result is always feminine.
| Adjective | Noun | Meaning |
|---|---|---|
| feliz | a felicidade | happiness |
| livre | a liberdade | freedom |
| igual | a igualdade | equality |
| útil | a utilidade | usefulness |
| generoso | a generosidade | generosity |
| responsável | a responsabilidade | responsibility |
| possível | a possibilidade | possibility |
| real | a realidade | reality |
| difícil | a dificuldade | difficulty |
| bom | a bondade | goodness, kindness |
A felicidade não depende do dinheiro, mas também não ajuda estar sem ele.
Happiness doesn't depend on money, but being without it doesn't help either.
A liberdade de imprensa é fundamental numa democracia.
Freedom of the press is fundamental in a democracy.
Tens de assumir a responsabilidade pelo que fizeste.
You have to take responsibility for what you did.
Notice that the stem sometimes undergoes changes: feliz → felicidade (not felizdade), livre → liberdade (not livredade), responsável → responsabilidade (stem changes from -vel to -bil-). These are historically regular Latin-to-Portuguese transformations, but for learners they are effectively irregular forms to memorise.
-eza: the sensory quality suffix
The suffix -eza also forms abstract nouns from adjectives, but with a slightly different flavour — often a more sensory, characterful, or intense quality. Always feminine.
| Adjective | Noun | Meaning |
|---|---|---|
| belo | a beleza | beauty |
| rico | a riqueza | wealth, richness |
| triste | a tristeza | sadness |
| grande | a grandeza | greatness |
| rápido | a rapidez | speed |
| pobre | a pobreza | poverty |
| nobre | a nobreza | nobility |
| puro | a pureza | purity |
| certo | a certeza | certainty |
Note the variant -ez (with a final -z), which functions the same way and is also feminine: rápido → rapidez, sensato → sensatez, tímido → timidez, estúpido → estupidez. Treat it as the same suffix in a different phonological coat.
A beleza daquela paisagem ficou-me gravada na memória.
The beauty of that landscape was etched in my memory.
A rapidez com que resolveste o problema impressionou toda a gente.
The speed with which you solved the problem impressed everyone.
-dade vs -eza: which one?
Many learners find it infuriating that both suffixes exist when they mean roughly the same thing. Here is the rough-and-ready guide.
| Tendency | -dade | -eza |
|---|---|---|
| Feel | conceptual, objective, neutral | sensory, expressive, characterful |
| Register | mildly academic-friendly | everyday, literary, emotive |
| Base adjective type | often Latinate, ends in -vel, -oso, -al, -eral | often short, native-feeling adjectives |
| Typical example | bondade, utilidade, possibilidade | beleza, tristeza, riqueza |
In practice, most adjectives take one or the other by convention. Belo gives beleza (never beldade in modern use — though beldade exists as an archaic/poetic word meaning "a beauty" = a beautiful woman). Feliz gives felicidade (never felizeza). When both are possible, they have slightly different nuances: grandeza (greatness as an abstract quality, majesty) vs grandidade (which barely exists). Memorise the pairings; don't invent.
-ice: the character-judging suffix
The suffix -ice is smaller and stranger than the big two. It attaches mostly to adjectives of character, behaviour, or life stage and often carries a whiff of affection, mockery, or eccentricity. Always feminine.
| Adjective | Noun | Meaning |
|---|---|---|
| velho | a velhice | old age |
| doido | a doidice | craziness, a crazy act |
| tolo | a tolice | foolishness, a silly thing |
| menino | a meninice | childishness, childhood |
| bobo | a bobice | foolishness |
| chato | a chatice | a nuisance, an annoying thing |
A velhice chegou mais depressa do que eu esperava.
Old age arrived faster than I expected.
Não digas tolices — claro que isso é possível!
Don't say silly things — of course that's possible!
Que chatice, o comboio está atrasado outra vez.
What a nuisance, the train is late again.
Many -ice nouns have a count reading alongside the mass reading: uma tolice = "a silly thing (someone said/did)", plural tolices. This is a natural extension of the "behaviour/act" meaning.
Chatice is one of the most characteristically Portuguese words — a noun for "a thing that is a pain in the neck." It is everyday register, not vulgar, and extremely high-frequency.
-ismo: ideologies, movements, tendencies
The suffix -ismo forms abstract nouns naming ideologies, movements, or systematic tendencies. Unlike the feminine majority so far, -ismo is always masculine. It attaches to adjectives (and also directly to nouns).
| Base | Noun | Meaning |
|---|---|---|
| romântico | o romantismo | Romanticism, romanticism |
| socialista | o socialismo | socialism |
| real (art) | o realismo | realism |
| capitalista | o capitalismo | capitalism |
| egoísta | o egoísmo | selfishness |
| patriota | o patriotismo | patriotism |
| nacional | o nacionalismo | nationalism |
O romantismo influenciou toda a poesia portuguesa do século XIX.
Romanticism influenced all 19th-century Portuguese poetry.
O egoísmo dele acabou por afastar toda a gente.
His selfishness ended up pushing everyone away.
The paired agent/adherent suffix is -ista (same gender as the person): o socialista, a socialista; o capitalista, a capitalista. Together, -ismo and -ista are a matching pair that organise a huge chunk of political and aesthetic vocabulary.
-ura: a minor sensory suffix
The suffix -ura is less productive than the others but gives a small set of high-frequency nouns. Feminine.
| Adjective | Noun | Meaning |
|---|---|---|
| feio | a feiura | ugliness |
| doce | a doçura | sweetness |
| amargo | a amargura | bitterness |
| louco | a loucura | madness |
| branco | a brancura | whiteness |
| fresco | a frescura | freshness, coolness |
A doçura dos figos do Algarve é inigualável.
The sweetness of Algarve figs is unmatched.
A loucura apoderou-se dele depois da morte da mulher.
Madness took hold of him after his wife's death.
-ura nouns often have a distinctly sensory flavour — taste, touch, colour, mental state.
-ância / -ência: abstract qualities from -ante / -ente adjectives
When an adjective ends in -ante or -ente (often derived from a verb), it typically forms an abstract noun in -ância or -ência. Always feminine.
| Adjective | Noun | Meaning |
|---|---|---|
| distante | a distância | distance |
| importante | a importância | importance |
| elegante | a elegância | elegance |
| prudente | a prudência | prudence |
| paciente | a paciência | patience |
| presente | a presença | presence |
Não tenho paciência para filas enormes.
I have no patience for huge queues.
A distância entre Lisboa e o Porto é de cerca de 300 quilómetros.
The distance between Lisbon and Porto is about 300 kilometres.
Zero-derivation: the adjective used as a noun
Portuguese is quite willing to take an adjective, stick a definite article in front of it, and call it a noun. The result names a person, a thing, or an abstract category of whatever the adjective describes. The gender and number of the article depend on whether you mean a person, a category, or something else.
Referring to people
Os velhos sabem muitas histórias que os jovens nunca ouviram.
Old people know many stories the young have never heard.
Os portugueses são conhecidos pela sua hospitalidade.
The Portuguese are known for their hospitality.
Os ricos ficam cada vez mais ricos, os pobres cada vez mais pobres.
The rich get richer, the poor get poorer.
Referring to things or phenomena
O frio entrou pela janela aberta.
The cold came in through the open window.
Adoro o quente da lareira depois de um dia de chuva.
I love the warmth of the fireplace after a rainy day.
Referring to abstract categories
When you want to name a whole category or quality in the abstract, Portuguese often uses o + masculine singular adjective.
O belo e o sublime são categorias centrais na estética.
The beautiful and the sublime are central categories in aesthetics.
Na política, o bom e o mau misturam-se sempre.
In politics, the good and the bad are always mixed together.
This o + adjective = category pattern is particularly useful in philosophical, critical, and literary writing.
Português, francês, inglês: languages and nationalities
A special case of adjective-to-noun conversion concerns languages and nationalities. Adjectives like português, francês, inglês pull double duty:
- As adjectives: a cultura portuguesa (the Portuguese culture)
- As nouns referring to a person: um português, uma portuguesa (a Portuguese person)
- As nouns referring to the language (always masculine, often with article): o português, o francês (the Portuguese language, French)
O português é uma língua falada por mais de 250 milhões de pessoas.
Portuguese is a language spoken by more than 250 million people.
Conheci uma portuguesa muito simpática na festa.
I met a very nice Portuguese woman at the party.
Os portugueses gostam de falar de futebol e de política.
The Portuguese like to talk about football and politics.
Reference: which suffix when?
| Suffix | Gender | Typical flavour | Example |
|---|---|---|---|
| -dade / -idade | fem. | conceptual state/quality (often Latinate adjectives) | felicidade, possibilidade |
| -eza / -ez | fem. | sensory/expressive quality (often native adjectives) | beleza, tristeza, rapidez |
| -ice | fem. | character, behaviour, life stage (often slightly pejorative/affectionate) | velhice, doidice, chatice |
| -ismo | masc. | ideology, movement, systematic tendency | romantismo, socialismo |
| -ura | fem. | sensory quality (taste, touch, mental state) | doçura, amargura, loucura |
| -ância / -ência | fem. | quality derived from -ante / -ente adjectives | distância, paciência |
| o + adjective | masc. | abstract category (philosophical/aesthetic) | o belo, o justo |
| os + adjective (pl.) | varies | people of a type | os velhos, os ricos |
Common mistakes
Mistake 1: Wrong suffix for the adjective.
❌ a belezidade, a felicdade, a rapideza
Nonexistent forms
✅ a beleza, a felicidade, a rapidez
beauty, happiness, speed
You cannot freely pick a suffix. Each adjective takes the suffix convention has assigned it. Memorise the pairings.
Mistake 2: Wrong gender.
❌ o liberdade, o beleza, o felicidade
Incorrect — these suffixes are feminine
✅ a liberdade, a beleza, a felicidade
freedom, beauty, happiness
-dade, -eza, -ice, -ura, -ância, -ência are all feminine. -ismo is masculine. No exceptions for learners to worry about.
Mistake 3: Dropping the article in generic statements.
❌ Beleza é subjetiva.
Incorrect — bare noun in generic reference
✅ A beleza é subjetiva.
Beauty is subjective.
Abstract nouns require the definite article in generic reference. Same rule as for any abstract noun — see Abstract Nouns.
Mistake 4: Using o + adjective where the noun is required.
❌ O belo daquele quadro é extraordinário.
Stilted — for a specific instance, use *a beleza*
✅ A beleza daquele quadro é extraordinária.
The beauty of that painting is extraordinary.
O belo is the category in philosophy; for the beauty of a specific thing, use a beleza.
Mistake 5: Forgetting that -ista nouns take gender from the referent.
❌ a socialista João, o turista Maria
Gender-referent mismatch
✅ o socialista João, a turista Maria
the socialist João, the tourist Maria
-ista nouns (and adjectives) are epicene — same form for both genders, but the article matches the person's gender.
Key takeaways
- The most productive deadjectival suffix is -dade / -idade — feminine, conceptual, Latinate-friendly.
- -eza gives a more sensory or expressive flavour; compete with -dade on some adjectives.
- -ice marks character, behaviour, life stage — often slightly colouring the judgement.
- -ismo (masculine) forms ideologies and movements; paired with agent suffix -ista.
- -ura is a minor sensory suffix (doçura, amargura, loucura).
- -ância / -ência is the specialised suffix for adjectives in -ante / -ente.
- Zero-derivation (article + adjective) gives os velhos (old people), o frio (the cold), o belo (the beautiful as a philosophical category).
- Always pair the noun with the definite article in generic statements.
Related Topics
- Portuguese Nouns OverviewA1 — A map of the Portuguese noun system — gender, number, classification, derivation, and compounds — with forward references to every dedicated page.
- Abstract NounsB1 — Nouns for emotions, states, concepts, and processes — how Portuguese builds abstract nouns with specific suffixes, why they almost always take the definite article, and why saudade has no English equivalent.
- Creating Nouns from VerbsB2 — Deverbal nominalization in Portuguese — the suffixes -ção, -mento, -agem, -dor, -ância/-ência, plus zero-derivation and the articled infinitive — with guidance on when each suffix is preferred.
- Gender Rules and PatternsA1 — The endings that reliably predict whether a Portuguese noun is masculine or feminine, with reliability scores so you know which rules you can trust and which ones need a second look.
- Adjectives OverviewA1 — How adjectives work in European Portuguese: agreement, placement, types, comparison, and invariable forms.