Adjective Agreement with Multiple Nouns

When one Latin adjective relates to two or more nouns, agreement expresses how the writer groups them. A plural adjective can cover the coordinated set; an adjective can instead agree with the nearest or most prominent noun, especially when it is attributive or when the sentence unfolds one item at a time. For people of different genders, masculine plural is the traditional mixed-person form; for differently gendered things, predicate adjectives commonly use neuter plural.

First Decide Which Nouns the Adjective Modifies

Before selecting an ending, identify the adjective's scope. Does it modify one noun, or does it describe the whole coordinated group? English often places one uninflected adjective before two nouns—“a dear father and mother”—and leaves the scope vague. Latin endings frequently make the structure more explicit.

Here nominative plural cārī predicates one quality of both people. It does not agree with the nearest singular noun māter. The finite verb sunt independently agrees with the compound subject in the plural.

Both people are feminine, so feminine plural sollicitae covers the set. If coordinated nouns share gender, the ordinary plural of that gender is straightforward.

Feminine plural magnae describes both nouns together. Singular utraque ... vacua est then distributes the statement over each property separately. The contrast is conceptual: plural agreement groups, while distributive singular views members one at a time.

People: Use the Plural and Follow the Personal Gender Hierarchy

For two or more persons, a predicate adjective is normally plural. If all are feminine, use feminine plural. If the group contains a masculine person and a feminine person, traditional Classical agreement uses masculine plural.

The last rule is grammatical gender agreement, not a claim that the woman is male. English adjectives do not inflect, so “ready” conceals the calculation. Latin masculine plural serves as the conventional mixed personal plural. This remains the regular productive pattern in neutral Classical prose.

A person may be represented by a grammatically feminine or neuter noun, such as opera “worker, hired hand” (informal/colloquial) or mancipium “slave” (legal/formal). Agreement may follow grammatical form or, in sufficiently clear context, the person's natural sex by sense. Such lexical cases belong to Agreement by Sense; they do not overturn the ordinary hierarchy for transparent personal nouns.

Things of Different Genders: Neuter Plural Is Common in the Predicate

With coordinated nonpersonal nouns of different genders, a shared predicate adjective commonly appears in the neuter plural. Neuter plural packages unlike things as one set without selecting either noun's gender.

Mūrus is masculine and porta feminine; neuter plural dēlēta covers both. Because dēlēta sunt is a perfect passive, dēlēta is a participle but follows the same gender-number-case principles as an adjective.

Neuter frīgus and feminine pluvia are construed together; neuter plural molesta describes the combined circumstances. The dative viātoribus tells for whom they were troublesome.

This neuter plural is strongest with inanimate things and abstract conditions. With animals construed as living agents, or a mixed person-and-thing coordination, Classical authors may favor the gender of a salient noun, nearest-noun agreement, or recasting. There is no honest one-line algorithm for every mixed set. In composition, repeat the adjective or rewrite the sentence if a mechanical plural would obscure which referents are meant.

Repeating the predicates is not clumsy Latin when it prevents an awkward mixed animate agreement.

Nearest-Noun Agreement Is Licensed, Not Random

Latin can let one adjective agree with the nearest coordinated noun while its meaning extends over more than that noun. This is especially common when an attributive adjective precedes or follows a series and the nouns differ in gender or number.

An authentic example from Cicero shows singular nearest-noun agreement; the quotation is reproduced without editorial macrons:

Feminine singular ablative omnī formally agrees with adjacent grātiā, while its meaning extends across grātiā et opibus. In explicit neutral composition, repeating the adjective removes any momentary uncertainty:

Nearest agreement is not permission to attach any singular adjective to any list. The adjective must stand where its scope is recoverable, and semantics must make the shared property plausible. A plural form is clearer when one predicate follows an already assembled compound subject.

Predicate adjectives may also agree with a nearby member when the predicate comes first and the coordinated subjects unfold afterward, especially in (literary) narrative. Compare this with nearest-subject verb agreement on Agreement with Compound Subjects. For neutral learner composition, plural agreement with the completed set is the dependable choice.

The Case Still Comes from Syntax

Gender and number attract attention, but case remains indispensable. A shared attributive adjective takes the case of the coordinated phrase it modifies; a predicate adjective referring to a nominative subject is nominative.

Masculine accusative plural laetōs covers the mixed personal direct object puerum puellamque. Nominative laetī would be impossible here even though it sounds identical in an English translation.

Masculine ablative plural anxiīs covers both people because cum governs the entire coordinated phrase. The ending -īs is formally identical across all three plural genders, but the analysis still matters: it is ablative because of cum, plural because there are two referents, and masculine by mixed-person agreement.

Institutional and Formulaic Phrases

The Roman state formula is often written in inscriptions as follows:

This authentic (formal) formula is reproduced without editorial macrons. Singular masculine Romanus formally agrees with adjacent Populus, while the whole expression names the Roman civic authority. It is not evidence that any adjective may arbitrarily remain singular with compound nouns. Senātus already denotes a specifically Roman institution in the formula, and centuries of conventional use make the scope recoverable.

Lexicalized titles, legal formulas, and poetic phrases can preserve an agreement pattern that neutral prose would not freshly create. Learn such expressions as formulas. Productive composition still follows the transparent principles above.

A Practical Decision Table

1. Mark every noun that the adjective is intended to describe.
2. Derive case from the coordinated phrase's role.
3. If the nouns share gender, use the plural of that gender for a grouped reading.
4. For mixed-gender people, use masculine plural in the neutral Classical norm.
5. For differently gendered things in predicate position, expect neuter plural.
6. Use nearest-noun agreement only when placement and discourse make the wider scope unmistakable.
7. Repeat or recast when mixed animacy or lexical gender makes the result opaque.

Common Mistakes

Agreeing only with the nearest person in an ordinary predicate

Using feminine plural for a mixed personal group

Copying English's unmarked adjective into Latin

Treating nearest agreement as a universal shortcut

Key Takeaways

• Scope comes first: determine which nouns the adjective actually describes.
• Shared gender normally gives a plural adjective of that gender.
• Mixed personal groups conventionally take masculine plural; mixed inanimate groups commonly take neuter plural in the predicate.
• Nearest-noun agreement is a context-sensitive Classical option, especially in compact attributive phrasing.
• Case comes from syntax even when several gender and number choices are possible.