suspitious

Adjective

suspicious (comparative more suspicious, superlative most suspicious)

1. Arousing suspicion.
   • His suspicious behaviour brought him to the attention of the police.

   Synonyms:

   questionable, queer

2. Distrustful or tending to suspect.
   • We know he has a suspicious attitude to get-rich-quick schemes.

   Synonyms:

   doubtful, leery

   Antonyms:

   unsuspecting

3. Expressing suspicion
   • She gave me a suspicious look.