unreliable or untrustworthy, esp. in money matters(informal) fly-by-night operators who do shoddy work
She had proved to be an unreliable witness and had lied to police.
dubious business dealings
The film is a comedy in highly questionable taste.
Be wary of people who try to talk you into shady deals.
His opponents still say he's a fundamentally untrustworthy figure.
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in the sense of dubious
of doubtful quality or worthdubious business dealings
in the sense of questionable
of disputable value or authorityThe film is a comedy in highly questionable taste.
shonky (Australian, New Zealand, informal)
in the sense of shady
of doubtful honesty or legalityBe wary of people who try to talk you into shady deals.
fly-by-night 的词库—— 柯林斯 英语词库
Life on the edge
The desire to push the boundaries has been a motivator in many a daring expedition, testing the human spirit and physical abilities to the utmost. Indulge your adventurous spirit by exploring some associated ‘extreme’ vocabulary. Will you have the survival skills to master our quiz?