Synonyms for suspicious

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1. Entertaining suspicion

   jealous, distrustful, suspecting, doubting, questioning, wary, leery, doubtful, dubious, suspect, in doubt, without faith, skeptical, unbelieving, without belief, wondering.

   Antonyms trusting*, trustful, without any doubt of.

2. Arousing suspicion

   not quite trustworthy, questionable, queer, suspect, irregular, unusual, uncommon, different, peculiar, open to question, out of line, shady, equivocal, overt, debatable, disputable.

   Antonyms regular*, usual, common.