adjective
undefeated
adjective
1
Having never lost; still winning every match or contest so far.
"The boxer remained undefeated after his twentieth fight."
How to Use Undefeated
Learner’s notesIn plain EnglishHas never lost — a perfect winning record so far.
Common pairings
undefeated champion
undefeated season
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The boxer remained _____ after his twentieth fight.
Etymology
From un- + defeated.