undefeated

/əndɪˈfiɾɪd/

/əndɪˈfitɪd/

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."

Definitions of undefeated

1. adjective

   victorious
   “undefeated in battle”

   “an undefeated team”

   synonyms:

   triumphant, victorious

   experiencing triumph

   unbeaten, unconquered, unvanquished

   not conquered

   unbowed

   not forced to bow down to a conqueror

   successful

   having succeeded or being marked by a favorable outcome

   antonyms:

   defeated

   beaten or overcome; not victorious

   licked

   having been got the better of

   subjugated

   reduced to submission

   unsuccessful

   not successful; having failed or having an unfavorable outcome