Standard Lemma guide

undoubtedly

adv · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ʌnˈdaʊtɪdli/
  • proscribed: /ʌnˈdaʊtɪbli/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AH0 N D AW1 T IH0 D L IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adv

Meaning 1

Without doubt; definitely.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adverb

Meaning 2

without doubt; certainly

Definition source: Princeton WordNet 3.0

Examples

  • it's undoubtedly very beautiful

Meaning relationships

Synonyms: doubtless, doubtlessly

Antonyms: none provided

History

Etymology

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

Across languages

Translations

31 source translations are retained for this English entry.

  • Armenian: անկասկած (ankaskac) — without doubt
  • Bashkir: һис шикһеҙ (his şikheź) — without doubt
  • Bulgarian: несъмнено (nesǎmneno) — without doubt
  • Catalan: indubtablement — without doubt
  • Chinese Cantonese: 實 /实 (sat6) — without doubt
  • Chinese Mandarin: 毫無疑問 /毫无疑问 (háowú yíwèn) — without doubt
  • Dutch: ongetwijfeld — without doubt
  • Dutch: zonder twijfel — without doubt
  • Esperanto: sendube — without doubt
  • Finnish: epäilemättä — without doubt
  • French: sans aucun doute — without doubt
  • French: sans nul doute — without doubt
  • German: zweifellos — without doubt
  • Greek: αδιαμφισβήτητα (adiamfisvítita) — without doubt
  • Hindi: निस्संदेह (nissandeh) — without doubt
  • Hungarian: kétségtelenül — without doubt
  • Icelandic: eflaust — without doubt
  • Icelandic: efalaust — without doubt
  • Icelandic: vafalaust — without doubt
  • Icelandic: ugglaust — without doubt
  • Ido: nedubiteble — without doubt
  • Italian: indubbiamente — without doubt
  • Italian: senza dubbio — without doubt
  • Japanese: 疑いもなく (utagai mo naku) — without doubt
  • Macedonian: несомнено (nesomneno) — without doubt
  • Old Norse: iflaust — without doubt
  • Portuguese: indubitavelmente — without doubt
  • Russian: несомне́нно (nesomnénno) — without doubt
  • Spanish: indudadamente — without doubt
  • Swedish: otvivelaktligen — without doubt
  • Swedish: tvivelsutan — without doubt
Real reading context

undoubtedly in complete knowledge articles