fishy (adj.)

• ambiguous
• beguiling
• blank
• catchy
• conscienceless
• corrupt
• corrupted
• criminal
• crooked
• dark
• deadpan
• deceiving
• deceptive
• delusive
• delusory
• devious
• dishonest
• dishonorable
• doubtable
• doubtful
• dubious
• dubitable
• eellike
• empty
• equivocal
• evasive
• expressionless
• fallacious
• false
• felonious
• fraudulent
• funny
• glassy
• hallucinatory
• ill-gotten
• illusive
• illusory
• immoral
• impassive
• implausible
• improbable
• indirect
• inexpressive
• insidious
• misleading
• odd
• peculiar
• piscatorial
• piscatory
• piscine
• poker-faced
• problematic
• queer
• questionable
• rotten
• shady
• shameless
• shifty
• sinister
• slippery
• strange
• suspect
• suspicious
• tricksy
• tricky
• uncertain
• unconscientious
• unconscionable
• underhand
• underhanded
• unethical
• unexpressive
• unlikely
• unprincipled
• unsavory
• unscrupulous
• vacant
• wooden