What is a synonym for "indubitable"?

Common synonyms include: absolute, actual, admitting no question, apparent, authentic, axiomatic.

How do you pronounce "indubitable"?

Pronounced //ɪnˈdubɪtəbəl//.

Indubitable

//ɪnˈdubɪtəbəl// adj, noun

adj, noun ·Moderate ·College level

Definitions

Noun

1
That which is indubitable.
"If we build logically upwards from a few indubitables, the whole system must remain correct."

Adjective

1
Clearly true; providing no possibility of doubt.
"The indubitable effect of the potion convinced many nonbelievers."

Adjective

1
too obvious to be doubted wordnet

Synonyms

All synonyms

absolute actual admitting no question apparent authentic axiomatic

Antonyms

All antonyms

dubitable obscure

Example

More examples

"Change is one thing, progress is another. "Change" is scientific, "progress" is ethical; change is indubitable, whereas progress is a matter of controversy."

Etymology

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

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.