Unsubstantiated

مترادف و متضاد unsubstantiated

1. adjective questionable, unproven
   Synonyms: arguable, controversial, debatable, disputable, doubtful, dubious, dubitable, fishy, hard to believe, iffy, indefinite, open to doubt, open to question, suspect, suspicious, uncertain, unconfirmed, uncorroborated, unsupported