fishy
Definitions
Arousing suspicion; questionable or dishonest.
Resembling or smelling like fish.
Examples
The deal he offered seemed a bit fishy, so I decided not to sign the contract.
There was a fishy smell coming from the refrigerator, suggesting that the milk had gone bad.
Synonyms
suspicious dubious questionable shady skeptical untrustworthy dodgy
Antonyms
honest trustworthy aboveboard genuine transparent reliable straightforward