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Synonyms

undoubted

American  
[uhn-dou-tid] / ʌnˈdaʊ tɪd /

adjective

  1. not called in question; accepted as beyond doubt; undisputed.


undoubted British  
/ ʌnˈdaʊtɪd /

adjective

  1. beyond doubt; certain or indisputable

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See doubtless ( def. ).

Other Word Forms

Etymology

Origin of undoubted

late Middle English word dating back to 1425–75; see origin at un- 1, doubt, -ed 2

Explanation

Something that's undoubted is generally accepted as certain or true. If you make $100 in one afternoon at your lemonade stand, it's an undoubted success! You can use the adjective undoubted to describe things you have no doubt about, in much the same way you'd use undisputed. If everyone agrees that you're the best Monopoly player in the whole family, you're the game's undoubted champion. And when you have a pal who's always there for you, they're your undoubted friend — you don't have the slightest bit of doubt about their friendship.

Keep Reading on Vocabulary.com

Vocabulary lists containing undoubted

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

If it had not been for his Catalan counterpart down the M62, Klopp's rock 'n' roll Reds would have been the undoubted top dogs under the German.

From BBC Aug. 25, 2026

He showed glimpses of his undoubted ability, but there was a feeling among some supporters that they had not yet seen enough of Alexander-Arnold to judge his impact.

From BBC Aug. 9, 2026

For all Olmo and Baena's undoubted quality at this tournament, Xavi and Iniesta are one of the best midfield partnerships in footballing history, from their time together with Spain and Barcelona.

From BBC Jul. 17, 2026

“It was a good book suggested to me by an actress of undoubted talent,” Martel shares, careful to avoid names.

From Los Angeles Times May 6, 2026

His undoubted gifts as an anatomist allowed him to get away with the most barefaced dishonesties.

From "A Short History of Nearly Everything" by Bill Bryson

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