Inclined to suspect; given or prone to suspicion; apt to imagine without proof.

Liable to suspicion; adapted to raise suspicion; giving reason to imagine ill; questionable; as, an author of suspicious innovations; suspicious circumstances.

openly distrustful and unwilling to confide

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"

Suspect of doing wrong; distrustful