doubtless

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doubtless

  • /ˈdaʊ̯tləs/
  • /ˈdʌʊ̯tləs/ Canada

Where it comes from

From Middle English douteles, dowteles, equivalent to doubt + -less.

adjective doubtlesse · doutless

  1. not comparable Characterized by or experiencing no doubt at all, certain; undoubted; undoubting. There are those who have doubtless faith in revelation.
  2. not comparable, obsolete Free from fear or suspicion. And, pretty childe, ſleepe doubtleſſe, and ſecure, / That Hubert for the wealth of all the world, / Will not offend thee.

adverb doubtlesse · doutless

  1. not comparable Without doubt; certainly; definitely; very probably, in all likelihood; doubtlessly. […] And, doubtless, unto thee is given ⁠A life that bears immortal fruit ⁠In such great offices as suit The full-grown energies of heaven.

    Similar: indubitably, undoubtably, undoubtedly, unquestionably, without a doubt, without doubt, indisputably

Thesaurus

Closest in meaning: undoubtedly, beyond question, without doubt, indisputably, incontrovertibly, unquestionably, undeniably, undoubtably, undisputedly, unequivocally, indubitably, inevitably, decidedly, definitely, surely, absolutely

Translations

Every language

adj characterized by no doubt

Deutschzweifelsfrei, zweifellos
Русскийнесомне́нный nesomnénnyj

adv without question

Françaissans aucun doute, sans nul doute, indubitablement
Deutschzweifellos

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Cite this
MLA

"doubtless." Wiktionary, via Micwyn, micwyn.com/word/doubtless. Accessed 6 Nov. 2026.

APA

doubtless. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/doubtless

Chicago

"doubtless." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/doubtless.

BibTeX
@misc{doubtless_2026,
  title = {doubtless},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/doubtless},
  urldate = {2026-11-06}
}