Here is a list of commonly used adjectives in French. The list shows the masculine and feminine forms of each adjective - the gender of an adjective must agree with the subject or object to which it refers.

1. Adjectives
French adjectives
The following adjectives are useful for describing physical qualities of people or objects in French, plus some other basic qualities:
Masculine Feminine
petit / grand / gros petite / grande / grosse
vieux / jeune vieille / jeune (already an ‘e’ on the end so no need to add another one)
beau / moche belle / moche
fort / faible forte / faible (already an ‘e’ on the end so no need to add another one)
long / court longue / courte
bas / haut basse / haute
léger / lourd légère / lourde

2. Adjectives
French adjectives
The following adjectives are useful for describing physical qualities of people in French, plus some other basic qualities:
Masculine Feminine
froid / chaud froide / chaude
propre / sal propre / sale
plein / vide pleine / vide
sec / humide seche / humide
bon / mauvais bonne / mauvaise
doux / dur douce / dure
nouveau
(in front of a word beginning with a vowel: nouvel)
nouvelle