Standard Lemma guide

indubitable

adj · noun · 3 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

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  • UK: /ɪnˈdjuːbɪtəbəl/
  • US: /ɪnˈdubɪtəbəl/
  • US: Recorded audio is listed in the source snapshot.

1

adj

Meaning 1

Clearly true; providing no possibility of doubt.

Definition source: English Wiktionary via Wiktextract

Examples

  • The indubitable effect of the potion convinced many nonbelievers.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

That which is indubitable.

Definition source: English Wiktionary via Wiktextract

Examples

  • If we build logically upwards from a few indubitables, the whole system must remain correct.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adjective satellite

Meaning 3

too obvious to be doubted

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: beyond doubt(p)

Antonyms: none provided

History

Etymology

Either from French indubitable or Latin indubitābilis. By surface analysis, in- + dubitable.

Across languages

Translations

17 source translations are retained for this English entry.

  • Bulgarian: несъмнен (nesǎmnen) — not dubitable
  • Catalan: indubtable — not dubitable
  • Dutch: twijfelloos — not dubitable
  • Dutch: onbetwijfelbaar — not dubitable
  • Finnish: epäilyksetön — not dubitable
  • Finnish: ilmeinen — not dubitable
  • French: indubitable — not dubitable
  • German: unzweifelhaft — not dubitable
  • Hungarian: kétségbevonhatatlan — not dubitable
  • Icelandic: efalaus — not dubitable
  • Icelandic: ótvíræður — not dubitable
  • Icelandic: óhrekjandi — not dubitable
  • Icelandic: vafalaus — not dubitable
  • Ido: nedubitebla — not dubitable
  • Spanish: indudable — not dubitable
  • Turkish: sorgulanamaz — not dubitable
  • Turkish: şüphesiz — not dubitable