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Endings of regular and irregular French adjectives

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Regular forms of French adjectives

Every adjective has to agree in number and gender with the noun it modifies. To make an adjective agree with the noun or pronoun it describes, you simply add the following endings in most cases:

 with masculine nounwith feminine noun
 Singular un chat noir une chemise noire
 Plural des chats noirs des chemises noires

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Keep in mind

enlightenedWith most adjectives you add an -e to the masculine singular form to make it feminine.

un sac lourd (a heavy bag) → une valise lourde (a heavy suitcase)

enlightenedIf the adjective already ends in an -e in the masculine form, you do not add another -e.

un sac jaune (a yellow bag) → une chemise jaune (a yellow shirt)

List of adjective endings

 Masculine endingFeminine ending Example Meaning
 -f -ve neuf → neuve new
 -x -se heureux → heureuse happy
 -er -ère cher → chère dear, expensive







 paysan → paysanne

 européen → européenne

 bon → bonne

 farming, country


 good, right 

 -el -elle cruel → cruelle cruel
 -eil -eille pareil → pareille similar



 net → nette

 complet → complète


 complete, full

enlightenedPlease note that if a masculine adjective ends in a vowel its pronunciation does not change when an -e is added to form the feminine.

Irregular forms of French adjectives

Some very common adjectives are completely irregular in the feminine form:

 aigu aiguë sharp
 ambigu ambiguë ambiguous
 bénin bénigne benign
 long longue long
 favori favorite favorite
 malin maligne sly
 frais fraîche fresh

The adjectives beau, nouveau, vieux, fou, mou

The adjectives beau, nouveau, vieux, fou and mou have three unique forms. They have a special masculine singular form before words beginning with a vowel or silent h.

Masculine before a consonantMasculine before a vowelFeminine Meaning
 beau bel belle beautiful
 nouveau nouvel nouvelle new
 vieux vieil  vieille old
 fou fol folle crazy
 mou mol molle soft


  • un bel appartement (a beautiful flat)
  • le Nouvel An (New Year)
  • un vieil arbre (an old tree) 

Plural of adjectives

Regular forms

With most adjectives you add an -s to the masculine singular or feminine singular form to form the plural.

 Singular Le garçon est grand. La fille est petite.
 Plural Les garçons sont grands. Les filles sont petites.

enlightenedWhen an adjective describes a masculine and a feminine noun or pronoun, use the masculine plural form of the adjective.

Adjectives ending in -s or -x

Adjectives ending in -s or -x are the same in the masculine singular and plural forms. The feminine plural stays regular.

Singular un garçon heureux une pièce merveilleuse
Plural des garçons heureux des pièces merveilleuses

Adjectives ending in -eu or -eau

Adjectives ending in -eu or -eau add -x to build the masculine form of the plural. The feminine plural stays regular.

Singular le nouveau professeur la belle peinture
Plural les nouveaux professeurs les belles peintures

enlightenedPlease note that there is an exception when it comes to the word bleu. In the plural it's transformed to bleus.

Adjectives ending in -al

Adjectives ending in -al change to -aux to form the masculine plural. The feminine plural stays regular.

Singular L'ami est loyal. La loi est légale.
Plural Les amis sont loyaux. Les lois sont légales.

enlightenedPlease note that there are exceptions when it comes to the words banal, fatal, final, natal and naval. You have to add an -s to form the plural form of these words.

Invariable adjectives

A small number of adjectives (mostly relating to colours) do not change in the feminine or plural. They are called invariable adjectives because their form NEVER changes, no matter what they are describing.

These adjectives are often made up of more than one word - for example, bleu marine (navy blue), or come from the names of fruit or nuts.

List of invariable adjectives

 Invariable color adjectives Meaning
 marron brown
 orange orange
 bleu foncé dark blue
 argent silver
 marine navy blue
 or gold
 turquoise turquoise


  1. Fill in the blank exercise about the adjective endings in French
  2. Fill in the blank exercise about the regular form of the feminine adjective
  3. Fill in the blank exercice about the irregular forms of the feminine adjective

Fill in the blank exercise about the adjective endings in French

Fill in the blank exercise about the regular form of the feminine adjective

Fill in the blank exercice about the irregular forms of the feminine adjective

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