undefeated

adjective

un·​de·​feat·​ed ˌən-di-ˈfē-təd 

-dē-

: 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

Speaking of the Ducks, Dan Lanning already has a semifinal appearance and a separate undefeated regular season in four years as a head coach, and six of his eight losses have come against teams that played for the national title. — Chris Vannini, New York Times, 18 Aug. 2026

This year’s Notre Dame-Miami game could feature undefeated teams. — Tim Casey, Forbes.com, 17 Aug. 2026

Holdsclaw’s 1998 team was Tennessee’s first undefeated season at 39–0 and the Lady Vols also set an NCAA record for the most wins in a season at that time. — ABC News, 15 Aug. 2026

An undefeated season for the Noles and a Heisman Trophy-winning campaign for Winston proved every single one of the doubters wrong, as FSU ran roughshod over the ACC en route to its third national title in program history. — Austin Perry Outkick, FOXNews.com, 15 Aug. 2026

Word History

First Known Use

circa 1775, in the meaning defined above

Rhymes for undefeated

• overheated
• superheated
• uncompleted
• accreted
• competed
• completed
• conceited
• concreted
• defeated
• deleted
• depleted
• entreated