This is the 1386th most frequent French word.
suffisant
"Suffisant" means "sufficient" or "enough" in English.
'Suffisante' is used here as an adjective to describe something (the proofs) being adequate or enough to satisfy a certain need.
Ces preuves sont-elles suffisantes pour convaincre le jury ?
Are these pieces of evidence sufficient to convince the jury?
'Suffisant' is employed here to describe a character trait, meaning self-centered or conceited.
Il est tellement suffisant qu'il ne demande jamais d'aide.
He is so self-satisfied that he never asks for help.
'Suffisant' is used to express that the amount of studying is adequate or enough for the occasion.