Adjectives are describing words. They qualify a noun.
In French, adjectives are singular, plural, masculine or feminine to agree with the noun they qualify.

Agreement of Adjectives


REGULAR ADJECTIVES

 The following is the general rule followed by most French adjectives.

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
grandgrands grandegrandes
noirnoirs noirenoires
petitpetits petitepetites
vertverts vertevertes

 Adjectives ending in -u, -i or also follow the same rule but don't change in pronunciation.

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
bleubleus bleuebleues
jolijolis joliejolies
fatiguéfatigués fatiguéefatiguées

 Adjectives ending in -e (without an accent) have same masculine and feminine forms.

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
jaunejaunes jaunejaunes
rougerouges rougerouges
adorableadorables adorableadorables

 Adjectives ending in -s have identical masculine singular and plural forms.

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
anglaisanglais anglaiseanglaises
françaisfrançais françaisefrançaises
grisgris grisegrises

 Adjectives ending in -er changes to -ère ending in feminine form.

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
cherchers chèrechères
fierfiers fièrefières
premierpremiers premièrepremières
dernierderniers dernièredernières

 Adjectives ending in -eux changes to -euse ending in feminine form. The masculine singular and plural forms are identical

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
fameuxfameux fameusefameuses
délicieuxdélicieux délicieusedélicieuses
dangereuxdangereux dangereusedangereuses
ennuyeuxennuyeux ennuyeuseennuyeuses

 Some adjectives double the last letter before adding an -e for the feminine forms.

MASCULINE FEMININE
SINGULARPLURAL SINGULARPLURAL
ancienanciens ancienneanciennes
bonbons bonnebonnes
grosgros grossegrosses