undefeated
Britishadjective
Explanation
Has your volleyball team won every single game this season? Then it's undefeated — it hasn't been beaten yet! You'll almost always find this adjective describing sports teams or players who haven't suffered a loss, like the undefeated tennis player who's won all of her matches or the basketball team that's been undefeated for four games. Undefeated adds the prefix un-, or "not," to defeated, "beaten," which we can trace back to the Vulgar Latin diffacere, "destroy."
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.
This season, the undefeated Tarleton State football team reached No. 1 in the Football Championship Subdivision for the first time in school history, and it’s planning the leap to the sport’s highest level.
From The Wall Street Journal ● Nov. 6, 2026
Minnesota was the last undefeated team but will get a big test with this one.
From Los Angeles Times ● Nov. 5, 2026
There he became a two-time undisputed champion, beating Britons Tyson Fury, Anthony Joshua and Daniel Dubois twice each to stretch his undefeated record to 25 fights.
From BBC ● Oct. 31, 2026
Brian Flores has the Vikings playing unlike any other defense in the league—and the strategy is the backbone of the sport’s last undefeated team.
From The Wall Street Journal ● Oct. 30, 2026
Playing without suspended phenom Josh Bell didn’t seem to faze Coach Hawkins’ undefeated ’Cats.
From "The Crossover" by Kwame Alexander
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