Synonyms of undefeated

undefeated

adjective

as in unbeaten

not having or including any losses or defeats

They were undefeated in their first nine games.

an undefeated team

Related Words

• unbeaten
• unconquered
• invincible
• unbeatable
• unstoppable
• unconquerable
• indomitable
• insurmountable
• unbowed
• invulnerable
• impregnable
• bulletproof
• unassailable
• unsubdued
• insuperable
• inviolable
• untouchable
• defended
• protected
• armored
• guarded
• unbreachable
• shielded
• safeguarded
• secure
• safe

Dissimilar Words

• open
• unprotected
• susceptible
• liable
• unsafe
• insecure
• unguarded
• exposed
• weak
• helpless
• powerless
• defenseless
• imperiled
• vulnerable
• vincible
• surmountable
• superable

Example Sentences

Recent Examples of undefeated

Burroughs, a gold medalist at the 2012 Olympics, extends his undefeated streak to 65 matches with a 4-0 victory over Iran’s Ezzatollah Akbarizarinkolaei in the 163-pound category at the Laszlo Papp Sports Arena in Budapest, Hungary. — Assistant Sports Editor, Los Angeles Times, 18 Sep. 2026

Michigan later beat Oklahoma 17-10 in Week 2 to remain undefeated. — Dejanay Booth-Singleton, CBS News, 17 Sep. 2026

Eleven undefeated teams remain in the Big Ten through two weeks. — Austin Meek, New York Times, 14 Sep. 2026

But all of that distaste was supposed to go away when the games began, when the undefeated and delicious product that is college football finally got the chance to shove the ancillary stuff back into the shadows. — Dana O’Neil, CNN Money, 6 Sep. 2026