How do you say he is not lazy in French?

There are a few ways to say "he is not lazy" in French, depending on the level of formality and emphasis you want to convey:

Formal:

* Il n'est pas paresseux. (This is the most literal translation and is quite formal)

* Il est diligent. (This means "he is diligent" and is more formal and positive)

* Il est travailleur. (This means "he is hard-working" and is also formal and positive)

Informal:

* Il n'est pas feignant. (This means "he is not lazy" and is more informal)

* Il est pas fainéant. (This means "he is not lazy" and is even more informal and slightly slangy)

Other options:

* Il est dynamique. (This means "he is dynamic" and implies he's energetic and motivated)

* Il est actif. (This means "he is active" and suggests he's not inactive or sluggish)

The best option will depend on the context of your conversation.