General Suspicion:
* Suspect: This is the most common and direct translation.
* Méfiant: This implies a feeling of distrust or wariness.
* Soupçonneux: This emphasizes the act of suspecting or having doubts.
For a Person:
* Suspect: This can be used to describe someone who is considered suspicious.
* Louche: This describes someone who is shady or disreputable.
* Clandestin: This refers to someone who is secretive or hidden.
For an Action or Situation:
* Suspect: This can be used to describe an action or situation that seems suspicious.
* Étrange: This means strange or unusual.
* Louche: This refers to something that is shady or dubious.
Here are some examples:
* Il a l'air suspect. (He looks suspicious.)
* Elle est méfiante envers les étrangers. (She is wary of strangers.)
* Le comportement du garçon était soupçonneux. (The boy's behavior was suspicious.)
* C'est un quartier louche. (It's a shady neighborhood.)
* Il y a quelque chose d'étrange dans cette affaire. (There's something strange about this affair.)
The best translation will depend on the specific context and the nuance you want to convey.