Meanings
comparative more unquestionable · superlative most unquestionable · alternative archaic unquæstionable
- Undeniable, obvious.
Things that had been permanent and unquestionable were suddenly thrown into doubt.
2003, Christopher Paolini, “Dragon Tales”, in Eragon, page 203 more examples
See the frowardneſſe of this Man, he would perſwade us that the Succeſſion and divine Right of Biſhopdom hath bin unqueſtionable through all Ages;
1641, John Milton, Animadversions upon the Remonstrants Defence against Smectymnuus; republished in A Complete Collection of the Historical, Political, and Miscellaneous Works of John Milton, […], volume I, Amsterdam [actually London: s.n.], 1698, →OCLC, page 143Too bad Locke's idea didn't catch on; the thought of measuring things in philosophical feet has an unquestionable poignance.
1988 August 19, Cecil Adams, “The Straight Dope”, in Chicago ReaderWhile their worth is unquestionable, these arias do not equate in form or intention with the classically defined art song.
1989, Ruth C. Lakeway, Robert Charles White, Italian Art SongSynonyms: inquestionable, questionless
Synonyms & antonyms
adjectiveUndeniable, obvious.
More synonyms by meaning
adjectiveincapable of being questioned
adjectivenot open to question
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
From un- + question + -able, compare questionable.
Full word history & related roots →Translations
Bulgarian несъмнен, безспорен
- несъмнен (nesămnen)undeniable, obvious
- безспорен (bezsporen)undeniable, obvious
Catalan inqüestionable
- inqüestionableundeniable, obvious
Esperanto nerefutebla
- nerefuteblaundeniable, obvious
Finnish kiistämätön
- kiistämätönundeniable, obvious
French indiscutable
- indiscutableundeniable, obvious
German fraglos, unzweifelhaft
- fraglosundeniable, obvious
- unzweifelhaftundeniable, obvious
Greek αδιαμφισβήτητος
- αδιαμφισβήτητος (adiamfisvítitos)undeniable, obvious
Italian indiscutibile
- indiscutibileundeniable, obvious
Polish bezdyskusyjny
- bezdyskusyjnyundeniable, obvious
Portuguese inquestionável
- inquestionávelundeniable, obvious
Romanian indiscutabil
- indiscutabilundeniable, obvious
Spanish incuestionable
- incuestionableundeniable, obvious
Cite this entry
unquestionable. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/unquestionable
“unquestionable.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unquestionable. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “unquestionable,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/unquestionable.
Source: unquestionable on Wiktionary, CC BY-SA 4.0.