Thesaurus

unchallengeable

adjective

Synonyms and Antonyms of unchallengeable

not capable of being challenged or proved wrong

the contention that there are certain unchallengeable rules governing proper grammar

Synonyms of unchallengeable

accomplished, certain, inarguable, incontestable, incontrovertible, indisputable, indubitable, irrefragable, irrefutable, positive, sure, unanswerable, unarguable, undeniable, unquestionable

Words Related to unchallengeable

unambiguous, unequivocal

absolute, clear, conclusive, decisive, definite, hands-down

uncontested, uncontradicted, undisputed, unquestioned

Near Antonyms of unchallengeable

controversial, debated, disputed

doubtful, dubious, iffy, inconclusive, indecisive, uncertain

ambiguous, equivocal

hypothetical, speculative, theoretical (also theoretic)

Antonyms of unchallengeable

answerable, arguable, contradictable, controvertible, debatable, disputable, doubtable, moot, negotiable, problematic (also problematical), questionable, refutable

Learn More about unchallengeable

Dictionary: Definition of unchallengeable

Seen and Heard

What made you want to look up unchallengeable? Please tell us where you read or heard it (including the quote, if possible).

show

WORD OF THE DAY

skirl

play

to emit the high shrill tone of bagpipes

Words at Play

Ask the Editors

Word Games