Also found in: Dictionary, Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.
Related to questionable: Questionable Content
questionable(Dubious), adjective ambiguous, at issue, contestable, controversial, controvertible, debatable, disputable, doubtable, doubtful, dubious, enigmatical, equivocal, experimental, fallible, hard to believe, hardly possible, improbable, inconceivable, indefinite, indeterminate, in dispute, in question, moot, more than doubtful, not axiomatic, objectionable, open to doubt, open to question, perplexing, puzzling, speculative, suspect, suspicious, tentative, unauthentic, unconvincing, undecided, undetermined, unlikely, unreliable, unsettled, unsound, unsure, unsustainable, untrustworthy, vague
questionable(Unethical), adjective corrupt, dishonorable, disreputable, ill-gotten, immoral, shady, unconscionable, underhanded, unprincipled, unscrupulous, untrustworthy
See also: blameworthy, contestable, controversial, debatable, disputable, doubtful, dubious, dubitative, equivocal, fallacious, implausible, indefinite, lewd, ludicrous, moot, outrageous, problematic, speculative, tentative, unbelievable, undecided, unethical, unscrupulous, unsound, unsustainable, untenable, untrustworthy, vague