"fishy" in the adjective sense

1. fishy

of or relating to or resembling fish

"the soup had a fishy smell"

2. fishy, funny, 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"

Source: WordNet® (An amazing lexical database of English)

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