Gradation of adjectives : by adding "plus" to form the comparative, "le plus / la plus / les plus" to form the superlative:
haut - high
plus haut - higher
le plus haut - the highest, le plus beau - the most beautiful (feminine: la plus belle; plural masculine: les plus beaux; plural feminine: les plus belles).
Exceptions: the three adjectives have different forms:
| positive | comparative | superlative |
| bon (good) | meilleur (better) | le meilleur (the best) |
| mauvais | pire | le pire |
| petit | moindre | le moindre |