Synonyms and Antonyms of indubitable
not capable of being challenged or proved wrong <the indubitable fact that there are no more woolly mammoths or saber-toothed tigers around> Synonyms accomplished, certain, inarguable, incontestable, incontrovertible, indisputable, irrefutable, irrefragable, positive, sure, unanswerable, unarguable, unchallengeable, undeniable, unquestionableRelated Words unambiguous, unequivocal; absolute, clear, conclusive, decisive, definite, hands-down; uncontested, uncontradicted, undisputed, unquestionedNear Antonyms controversial, debated, disputed; doubtful, dubious, iffy, inconclusive, indecisive, uncertain; ambiguous, equivocal; academic (also academical), hypothetical, speculative, theoretical (also theoretic)Antonyms answerable, arguable, contradictable, controvertible, debatable, disputable, doubtable, moot, negotiable, problematic (also problematical), questionable, refutable
Seen and Heard
What made you want to look up indubitable? Please tell us where you read or heard it (including the quote, if possible).