Questionable

Adjective

 * 1) Problematic; open to doubt or challenge
 * It is questionable if the universe is open or closed.
 * 1) Of dubious respectability or morality
 * Tiffiny's behavior is highly questionable.

Adverbs for Questionable
highly; morally; controversially; argument- atively; distinctly; darkly; uncomfortably; naturally; particularly; legally; ticklishly; undeniably; mysteriously; inferentially; conventionally.

Thesaurus
a bit thick, a bit thin, absurd, ambiguous, amoral, arguable, at issue, beguiling, beyond belief, borderline, catchy, confutable, conjectural, conscienceless, contestable, controversial, controvertible, corrupt, corrupted, criminal, crooked, dark, debatable, deceiving, deceptive, delusive, delusory, deniable, devious, dishonest, dishonorable, disputable, doubtable, doubtful, dubious, dubitable, equivocal, evasive, fallacious, false, felonious, fishy, fly-by-night, fraudulent, hallucinatory, hard of belief, hard to believe, hardly possible, iffy, ill-got, ill-gotten, illusive, illusory, immoral, implausible, improbable, in dispute, in doubt, in dubio, in question, inconceivable, incredible, indirect, insidious, misleading, mistakable, moot, more than doubtful, not deserving belief, not kosher, obscure, open to doubt, open to question, open to suspicion, passing belief, preposterous, problematic, problematical, refutable, ridiculous, rotten, shady, shameless, shifty, sinister, slippery, speculative, staggering belief, suppositional, suspect, suspicious, tall, thick, thin, trickish, tricksy, tricky, trustless, unbelievable, uncertain, unconscienced, unconscientious, unconscionable, unconvincing, undependable, underhand, underhanded, unearthly, unethical, ungodly, unimaginable, unlikely, unprincipled, unpromising, unreliable, unsavory, unscrupulous, unstraightforward, unsure, unthinkable, untrustworthy, untrusty, unworthy of belief, vague, without remorse, without shame

Alternative forms

 * quæstionable

Translations

 * Croatian: upitan
 * Finnish:


 * German:
 * Polish: wątpliwy


 * Croatian: upitan
 * Finnish:


 * German: