suspicious
US /səˈspɪʃ.əs/
UK /səˈspɪʃ.əs/

1.
suspicieux, méfiant
having or showing a cautious distrust of someone or something
:
•
He gave me a suspicious look when I asked about the money.
Il m'a jeté un regard suspicieux quand j'ai posé des questions sur l'argent.
•
The police became suspicious after finding inconsistencies in his story.
La police est devenue méfiante après avoir trouvé des incohérences dans son histoire.
2.
suspect
causing one to have the idea or impression that something is wrong or illegal
:
•
There was a suspicious package left outside the building.
Il y avait un colis suspect laissé devant le bâtiment.
•
Her sudden wealth seemed highly suspicious.
Sa richesse soudaine semblait très suspecte.