Undefeatable

Origin

un- + defeat + -able

Full definition of undefeatable

Adjective

1. Not defeatable; impossible to defeat.

Noun

1. Something that has an undefeatable quality.

Synonyms

• invincible
• invulnerable
• impregnable
• impenetrable

Derived terms

• defeatable
• undefeatability
• (rare) undefeatableness