curieux

/ky.ʁjø/
1.
adjectivemasculineSing

curious (having a desire to know), inquisitive

Il est curieux de tout ce qui concerne l'histoire.

He is curious about everything related to history.

2.
adjectivemasculineSing

strange, odd, curious (surprising or noteworthy)

C'est curieux, j'étais sûr d'avoir laissé mes clés ici.

It's odd — I was sure I'd left my keys here.

3.
nounmasculineSing

a curious person; onlooker, bystander (someone who looks on out of curiosity)

Il y avait beaucoup de curieux devant la vitrine ce matin.

There were lots of onlookers in front of the shop window this morning.