Adjectives (agreement and position)

French adjectives are a system, not a vocabulary. There are three things to learn about every adjective: its gender forms (masculine and feminine), its number forms (singular and plural), and its position (before or after the noun). Two of these are mostly mechanical. The third — position — is the one that takes years of reading to internalise.

Agreement: gender and number

A French adjective takes the gender and number of the noun it describes.

The default rule:

• Masculine singular is the base form (what the dictionary lists).
• Feminine adds -e to the end.
• Plural adds -s.
• Feminine plural adds -es.

un grand homme / une grande femme / de grands hommes / de grandes femmes

If the masculine already ends in -e, no change for the feminine:

un homme calme / une femme calme

If the singular ends in -s or -x, no change for the plural:

un homme heureux / des hommes heureux

Common irregular feminines

A few of these have a special masculine form before a vowel. Beau becomes bel: un bel homme (not un beau homme). Same with vieux → vieil and nouveau → nouvel.

Position: most adjectives follow the noun

The default position for a French adjective is after the noun. This is the opposite of English.

une voiture rouge — a red car un livre intéressant — an interesting book des idées originales — original ideas

Most adjectives describing colour, shape, religion, nationality, materiality, or any technical property go after.

un drapeau français, un homme catholique, une boîte ronde, un chemin difficile, une table en bois

Position: a small group goes before

A short, closed list of adjectives sits before the noun. The mnemonic is BAGS (or, in fuller form, BANGS) — the categories these adjectives describe.

un beau jardin, une jolie fille un jeune homme, un vieux livre le premier ministre, la dernière fois un bon ami, un mauvais signe un grand homme, une petite fille

These are the everyday adjectives — beauty, age, goodness, size are the descriptions you reach for constantly. So even though “most adjectives go after,” the most-used ones go before.

When both positions are possible

Some adjectives can sit on either side. The position changes the meaning, sometimes drastically.

This is the most surprising part of the system for English speakers. Mon ancien professeur and mon professeur ancien are not even remotely synonyms. The position carries the meaning.

Plural: des becomes de before a pre-noun adjective

A small written-French quirk worth knowing: when an indefinite plural noun has a pre-noun adjective, des often becomes de in formal writing.

des hommes intelligents (post-noun adjective → des) de grands hommes (pre-noun adjective → de)

Spoken French ignores this rule increasingly. Written French enforces it.

Adjectives after être, sembler, paraître, devenir

When an adjective follows a copular verb (être, sembler, devenir, rester), it agrees with the subject, not with the verb’s complement.

Elle est intelligente. — She is intelligent. Les enfants paraissent fatigués. — The children seem tired.

This is one of the most common adjective-agreement situations in conversation, and the rule is straightforward: agree with whoever the subject is.

Two adjectives modifying the same noun

Stack them in their natural positions. If both go after, they’re separated by et or simply listed:

un homme grand et fort

If they’re a BAGS adjective + a regular adjective, the BAGS goes before, the other after:

un beau jardin tropical

If both are BAGS, both go before, in BAGS order: un beau jeune homme.

What you don’t need to do

You don’t need to memorise the BAGS list as a list. After a year of reading French, grand homme / homme grand will feel different the way great man / tall man feels different in English. Don’t drill the rule; read for it.

You don’t need to handle every meaning shift on the spot. Cher, propre, ancien will trip you up for a long time. The position-meaning pairs become natural through reading, not memorisation.

You don’t need to make adjectives agree audibly. Most agreement endings are silent. Petit and petite sound nearly identical in fast speech (the -e sometimes audible, sometimes not). Writing forces the agreement; speech mostly hides it.

Common confusions

• The default is after, not before. English speakers default to before. Resist. A red car is une voiture rouge, not une rouge voiture.
• BAGS adjectives are a closed list. Don’t extend it by analogy. Bon is BAGS (goes before). Délicieux is not (goes after). Un délicieux gâteau sounds wrong; un gâteau délicieux is right.
• Position changes meaning. Un grand homme is a great man (noble, important). Un homme grand is a tall man.
• Color goes after, always. Une voiture rouge, un chapeau noir, des yeux verts. Never before.

Where you’ll meet it in the library

Adjective placement is everywhere; the texts that show it most cleanly:

• Madame Bovary (B2) — Flaubert is the textbook author for adjective rhythm. The careful pre-noun petit, grand, jeune alternated with descriptive post-noun adjectives (habillé en bourgeois, mal habillé) builds the slow, rich texture of his prose.
• Le Petit Prince (A1) — gentle exposure to the BAGS adjectives. Petit prince, grande personne, belle rose recur on every page.
• Notre-Dame de Paris (B2) — Hugo’s character introductions stack post-noun adjectives in lists. Quasimodo, Esmeralda, and the cathedral itself are described in dense, agreement-heavy prose.
• Les Trois Mousquetaires (B1) — adjectives of size, age, and goodness appear constantly in the brisk descriptions of duels, banquets, and rivals.