Synonyms for undefeatable

Most common

invincible · invulnerable · impregnable · unconquerable · impenetrable · insurmountable · unassailable · insuperable

All synonyms

Adjective

Antonyms

defeatable

All antonyms of undefeatable →

Definitions

1. adj. 1

   Not defeatable; impossible to defeat.

   Near-synonyms: impregnable, impenetrable, unassailable, unconquerable

Example sentences

• invincible Tom was long considered an invincible warrior.
• invulnerable Apart from his heel, Achilles was invulnerable.
• impregnable Islam will remain an impregnable fortress against wokeism.
• impenetrable The wall appeared to be smooth and impenetrable.
• insurmountable Algeria's economic problems aren't insurmountable.

Popularity over time

Use in printed books, per decade from 1850 to 2019.

By length

10 letters

invincible⁴

11 letters

indomitable⁵, impregnable⁴, insuperable

12 letters

impenetrable⁵, invulnerable⁵, unassailable⁵

13 letters

unconquerable

14 letters

insurmountable⁵, unovercomeable

The small number after each word is its number of syllables (invincible⁴ = 4 syllables).