martien

/maʁ.sjɛ̃/
1.
nounmasculineSing

a being from the planet Mars (Martian)

a person who seems very strange or out of place (colloquial)

T'as vu sa tête ? On dirait un martien.

Did you see his face? He looks like a Martian / like a stranger.

2.
adjectiveSing

relating to Mars; Martian

bizarre, outlandish (colloquial)

C'est quoi ce projet martien ?

What is this Martian project? / What a weird project this is.

martien - French Definition & Examples