Meanings
comparative more indubitably · superlative most indubitably
- In a manner that leaves no possibility of doubt.
Near-synonyms: verifiably, provably
3 more examples
Now his first suspicion was indubitably confirmed.
1871, Thomas Hardy, chapter 18, in Desperate RemediesThe world is indubitably one if you look at it in one way, but as indubitably is it many, if you look at it in another. It is both one and many—let us adopt a sort of pluralistic monism.
1907, William James, Pragmatism: A New Name for Some Old Ways of ThinkingThey were all indubitably, aggressively alive! Everybody was alive once more!
1913, Arthur Conan Doyle, “(please specify the page)”, in The Poison Belt […], London; New York, N.Y.: Hodder and Stoughton, →OCLCSynonyms: undoubtably, undoubtedly, doubtlessly, without doubt, without a doubt, unquestionably, indisputably, inarguably
Synonyms & antonyms
adverbIn a manner that leaves no possibility of doubt.
More synonyms by meaning
adverbin a manner or to a degree that could not be doubted
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Englishindubitable
- Proto-Indo-European*leyg-
- Proto-Germanic*līką
- Englishindubitably
From indubitable + -ly.
Full word history & related roots →Translations
Chinese Mandarin 毫無疑問 /毫无疑问
- 毫無疑問 /毫无疑问 (háowúyíwèn)Undoubtedly; unquestionably
Dutch ongetwijfeld, zonder twijfel
- ongetwijfeldUndoubtedly; unquestionably
- zonder twijfelUndoubtedly; unquestionably
Finnish epäilemättä, kiistattomasti
- epäilemättäUndoubtedly; unquestionably
- kiistattomastiUndoubtedly; unquestionably
French indubitablement
- indubitablementUndoubtedly; unquestionably
German unzweifelhaft
- unzweifelhaftUndoubtedly; unquestionably
Hindi निस्संदेह
- निस्संदेह (nissandeh)Undoubtedly; unquestionably
Icelandic ótvíræðlega, óhrekjanlega
- ótvíræðlegaUndoubtedly; unquestionably
- óhrekjanlegaUndoubtedly; unquestionably
Latin haud dubiē
- haud dubiēUndoubtedly; unquestionably
Polish bez wątpienia
- bez wątpieniaUndoubtedly; unquestionably
Russian несомне́нно, безусловно
- несомне́нно (nesomnénno)Undoubtedly; unquestionably
- безусловно (bezuslovno)Undoubtedly; unquestionably
Spanish indubitablemente
- indubitablementeUndoubtedly; unquestionably
Swedish utan tvivel, otvivelaktigt
- utan tvivelUndoubtedly; unquestionably
- otvivelaktigtUndoubtedly; unquestionably
Cite this entry
indubitably. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/indubitably
“indubitably.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/indubitably. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “indubitably,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/indubitably.
Source: indubitably on Wiktionary, CC BY-SA 4.0.