nul

/nyl/
1.
adjectivemasculine

bad, lousy (of poor quality)

useless, worthless

Ce film est vraiment nul.

This movie is really bad.

2.
adjectivemasculine

null, void (having no legal force or validity)

Le contrat est nul.

The contract is null/void.

3.
nounmasculine

a loser; an incompetent person

C'est un nul.

He's a loser / He's no good.