Meanings
comparative more indubitable · superlative most indubitable
- Clearly true; providing no possibility of doubt.
The indubitable effect of the potion convinced many nonbelievers.
Synonyms: undoubtable
plural indubitables
- That which is indubitable.
If we build logically upwards from a few indubitables, the whole system must remain correct.
Synonyms & antonyms
adjectiveClearly true; providing no possibility of doubt.
More synonyms by meaning
adjectivetoo obvious to be doubted
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Latinindubitābilis
- Frenchindubitable
- Englishindubitable
Either from French indubitable or Latin indubitābilis. By surface analysis, in- + dubitable.
Full word history & related roots →Translations
Bulgarian несъмнен
- несъмнен (nesămnen)not dubitable
Catalan indubtable
- indubtablenot dubitable
Dutch twijfelloos, onbetwijfelbaar
- twijfelloosnot dubitable
- onbetwijfelbaarnot dubitable
Finnish epäilyksetön, ilmeinen
- epäilyksetönnot dubitable
- ilmeinennot dubitable
French indubitable
- indubitablenot dubitable
German unzweifelhaft
- unzweifelhaftnot dubitable
Hungarian kétségbevonhatatlan
- kétségbevonhatatlannot dubitable
Icelandic efalaus, ótvíræður
- efalausnot dubitable
- ótvíræðurnot dubitable
- óhrekjandinot dubitable
- vafalausnot dubitable
Spanish indudable
- indudablenot dubitable
Turkish sorgulanamaz, şüphesiz
- sorgulanamaznot dubitable
- şüphesiznot dubitable
Cite this entry
indubitable. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/indubitable
“indubitable.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/indubitable. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “indubitable,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/indubitable.
Source: indubitable on Wiktionary, CC BY-SA 4.0.