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

Heading into Week 8, the Vikings remain the last undefeated team in the league after the Chiefs and 49ers both suffered losses last week. — Jason Cohen, PC Magazine, 30 Oct. 2026

Only one team in NFL history has gone undefeated, the 1972 Miami Dolphins, and, indeed, many of the great ones are those who stumble and get better from it. — Kansas City Star, 29 Oct. 2026

The Minnesota Vikings are the NFL’s last remaining undefeated team, sitting at a perfect 6-0. — Andy Scholes, CNN Money, 29 Oct. 2026

Today’s Four Questions interviewee is Dunwoody football coach Matt Schmitz, whose team will play undefeated Heritage of Conyers on Friday at North DeKalb Stadium for the Region 4-6A championship. — Stan Awtrey, AJC.com, 29 Oct. 2026