un·​de·​feat·​ed | \ ˌən-di-ˈfē-təd How to pronounce undefeated (audio) , -dē-\

Definition of undefeated

: not defeated : not having suffered a defeat an undefeated team/player : not including any losses or defeats an undefeated season a team with an undefeated record

Examples of undefeated in a Sentence

Recent Examples on the Web

The aggressive style is also why the Rams remain undefeated. Seattle Times Sports Staff, The Seattle Times, "What the national media are saying about the Seahawks’ 33-31 defeat to the Rams, and that controversial final timeout," 8 Oct. 2018 Between these five election cycles, the ‘waving’ party went undefeated in defending its Senate seats. Chris Stirewalt, Fox News, "Will a justice delayed be a justice denied?," 19 Sep. 2018 The first-time candidate is betting his outsider message, combined with a TV onslaught that started months ago, will be enough to topple a GOP establishment that has gone undefeated for 40 years. Reid J. Epstein, WSJ, "Wisconsin Primary Shows Waning Power of State’s GOP Leaders," 13 Aug. 2018 The ball ended up in that gorse, a full 25 yards left of the putting surface, and Mother Nature stays undefeated. Daniel Rapaport, SI.com, "Bryson DeChambeau, the Game’s Ultimate Tactician, Tested in Opening Round at Shinnecock," 14 June 2018 The United States rolled past Puerto Rico 115-71 on Tuesday to remain undefeated in three preliminary games. Beth Bragg, Anchorage Daily News, "No hoops medal for Hebard, but Hepa keeps racking up big wins," 13 June 2018 Baffert also remained undefeated with Derby winners in the Preakness following Silver Charm, Real Quiet, War Emblem and American Pharoah. Washington Post, "Justify wins foggy Preakness, keeps Triple Crown bid alive," 19 May 2018 Pham and Trinh were down a break of serve at 3-4, but rallied to stay undefeated in dual matches this season. Matt Szabo, latimes.com, "Fountain Valley reaches first CIF boys' tennis final with win over JSerra," 17 May 2018 Boys’ Tennis Masterman remained undefeated with a 5-0 victory over Bonner-Prendergast in the District 12 Class 2A championship. Mike Owens, Philly.com, "Thursday's Pa. roundup: Plymouth Whitemarsh baseball blanks Cheltenham," 10 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'undefeated.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of undefeated

circa 1775, in the meaning defined above

Keep scrolling for more

Learn More about undefeated

Statistics for undefeated

Look-up Popularity

Time Traveler for undefeated

The first known use of undefeated was circa 1775

See more words from the same year

Keep scrolling for more

More Definitions for undefeated



English Language Learners Definition of undefeated

: not having or including any losses or defeats


un·​de·​feat·​ed | \ ˌən-di-ˈfē-təd\

Kids Definition of undefeated

: having no losses

Keep scrolling for more

More from Merriam-Webster on undefeated

Thesaurus: All synonyms and antonyms for undefeated

Spanish Central: Translation of undefeated

Nglish: Translation of undefeated for Spanish Speakers

Comments on undefeated

What made you want to look up undefeated? Please tell us where you read or heard it (including the quote, if possible).


not to be persuaded, moved, or stopped

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!