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

The Rattlers, who won the 2023 title, are the only undefeated team on the young season. — Cal Phillips july 31, Fort Worth Star-Telegram, 31 July 2026

Cal Poly opened the year by upsetting Big West conference favorite UC Santa Barbara, positioning the men’s team for its first undefeated dual-meet season since moving to Division I in 1994. — Daniel Libit, Sportico.com, 23 July 2026

La Albiceleste even went undefeated during the eight-match campaign. — Theo Lloyd-Hughes, New York Times, 20 July 2026

La Roja tied its opener 0-0 against Cape Verde and went undefeated after that. — Michelle Kaufman, Miami Herald, 18 July 2026