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Definition of undoubtable

undoubtable

/ʌnˈdaʊtəbəl/
un · doubt · a · ble
Adverb:undoubtably
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undoubtable Lexical Profile

undoubtable Game Scores & Validity

• adjective

1

Not open to doubt or skepticism; certain, unquestionable, and beyond dispute.

Example

"The archive provided undoubtable proof that the treaty had been signed decades earlier."

Synonyms
View all synonyms for undoubtable
Antonyms
View all antonyms for undoubtable

Word Nuance & Usage

In contemporary formal English, 'undoubted' and 'indubitable' are strongly preferred over 'undoubtable', just as the adverb 'undoubtedly' is far more standard than 'undoubtably'.

• Rhymes for undoubtable

• Nearby Words

undomesticated
undone
undotted
undoubtable
undoubted
undoubtedly
undoubtful

Word Origin & Etymology

Formed in late Middle English from the prefix 'un-' (not) and 'doubtable', which derives via Old French from Latin 'dubitabilis' (doubtful), from 'dubitare' (to doubt or waver).

Cite this Entry

Wordmom. (2026). Definition of Undoubtable. In Wordmom Dictionary. Retrieved Nov 3, 2026, from https://wordmom.com/dictionary/undoubtable
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