douteux

/dutø/
1.
adjectivemasculineSing, Plur

doubtful

uncertain; not clearly reliable

Ces résultats me semblent douteux.

These results seem doubtful to me.

2.
adjectivemasculineSing, Plur

suspicious; shady

morally or socially questionable; in poor taste

Son comportement douteux a soulevé des questions.

His shady behaviour raised questions.