Dictionary

undoubtedly en · ADV

Pronunciation

• /ʌnˈdaʊtɪbli/ (proscribed)
• /ʌnˈdaʊtɪdli/
• (US) audio

Etymology

From Middle English undoutedly, equivalent to undoubted + -ly.

Meanings

1. Without doubt; definitely.
   • “It’s been a long process and I’ve come close to giving up along the way, but this is undoubtedly the craziest archaeological excavation I’ve yet been part of,” Bloch said in the news release. 2025 May 2, Amarachi Orie, “Archaeologists discover true identity of Costa Rica shipwrecks long thought to be pirate ships”, in CNN, archived from the original on 02 Aug 2025:
   • He declared that these drastic steps would undoubtedly inconvenience a good many people, but the alternative was bankruptcy of the Ulster Transport Authority and the breakdown of public transport services. 1956 May, “Transport in Ulster”, in Railway Magazine, page 279:
   • The cane was undoubtedly of foreign make, for it had a solid silver ferrule at one end, which was not English hall–marked. 1904–1905, Baroness Orczy [i.e., Emma Orczy], “The Ayrsham Mystery”, in The Case of Miss Elliott, London: T[homas] Fisher Unwin, published 1905, →OCLC; republished as popular edition, London: Greening & Co., 1909, OCLC 11192831, quoted in The Case of Miss Elliott (ebook no. 2000141h.html), Australia: Project Gutenberg of Australia, February 2020:

Forms

Synonyms

undoubtably · without a doubt · doubtlessly · unquestionably · sure · indubitably

Translations (31)

io nedubiteble (without doubt) · is vafalaust (without doubt) · cmn 毫無疑問 /毫无疑问 (without doubt) · es indudadamente (without doubt) · el αδιαμφισβήτητα (without doubt) · it senza dubbio (without doubt) · fr sans nul doute (without doubt) · sv otvivelaktligen (without doubt) · sv tvivelsutan (without doubt) · ru несомне́нно (without doubt) · is efalaust (without doubt) · ja 疑いもなく (without doubt) · pt indubitavelmente (without doubt) · mk несомнено (without doubt) · non iflaust (without doubt) · fr sans aucun doute (without doubt) · ba һис шикһеҙ (without doubt) · hi निस्संदेह (without doubt) · hy անկասկած (without doubt) · bg несъмнено (without doubt) · hu kétségtelenül (without doubt) · nl ongetwijfeld (without doubt) · fi epäilemättä (without doubt) · yue 實 /实 (without doubt) · ca indubtablement (without doubt) · eo sendube (without doubt) · is ugglaust (without doubt) · de zweifellos (without doubt) · it indubbiamente (without doubt) · nl zonder twijfel (without doubt) · is eflaust (without doubt)