Dictionary.com
Thesaurus.com
Synonyms

undefeated

British  
/ ˌʌndɪˈfiːtɪd /

adjective

  1. not having been defeated

    the undefeated champion

"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

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.

As an early 2000s champ in the sport, Mullin boasted an undefeated 5-0 record and the Oklahoma chapter of the National Wrestling Hall of Fame inducted him in 2016.

From Los Angeles Times • Mar. 26, 2026

The defeat ends Murphy's 18-fight unbeaten streak, while Evloev, 32, extends his undefeated record to 20 fights and puts himself in prime position to face champion Alexander Volkanovski.

From BBC • Mar. 21, 2026

In the co-main event, Liverpool's Luke Riley remained undefeated as he beat Michael Aswell Jr by unanimous decision for the 13th win of his career.

From BBC • Mar. 21, 2026

After a four-game sweep of the opening round, which included a historic upset of the U.S., they are one of three undefeated teams at the tournament, alongside baseball powerhouses Japan and the Dominican Republic.

From The Wall Street Journal • Mar. 13, 2026

In her third season, Luma’s team went undefeated and won their year-end tournament.

From "Outcasts United: An American Town, a Refugee Team, and One Woman's Quest to Make a Difference" by Warren St. John