English

Definition of undefeated adjective from the Oxford Advanced Learner's Dictionary

 

undefeated

 adjective
adjective
BrE BrE//ˌʌndɪˈfiːtɪd//
 
; NAmE NAmE//ˌʌndɪˈfiːtɪd//
 
 
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(especially in sport) not having lost or been defeated They are undefeated in 13 games. the undefeated world champion
See the Oxford Advanced American Dictionary entry: undefeated