Formal options:
* Un esprit vif: This literally translates to "a lively mind" and implies someone who is intelligent, quick, and sharp-witted.
* Un esprit brillant: This means "a brilliant mind" and suggests someone with a keen intellect and the ability to make insightful observations.
Informal options:
* Un fin motard: This literally translates to "a witty speaker" and specifically highlights someone who is good at making clever jokes and puns.
* Un farceur: This translates to "a joker" and implies someone who is playful and likes to make people laugh.
Other options:
* Une personne spirituelle: This is a more general term for someone with a sense of humor and wit.
* Un humoriste: This refers specifically to a comedian.
The best word choice will depend on the specific context and the type of wit you want to emphasize.