Adjective suspicious has 2 senses
  1. leery, mistrustful, suspicious, untrusting, wary - openly distrustful and unwilling to confide
    Antonyms: trustful, trusting (indirect, via distrustful)
  2. fishy, funny, queer, shady, suspect, suspicious - not as expected; "there was something fishy about the accident"; "up to some funny business"; "some definitely queer goings-on"; "a shady deal"; "her motives were suspect"; "suspicious behavior"
    Antonym: unquestionable (indirect, via questionable)
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