insurmountable

adjective

in·​sur·​mount·​able ˌin(t)-sər-ˈmau̇n-tə-bəl 

: incapable of being surmounted : insuperable

insurmountable problems

insurmountably

ˌin(t)-sər-ˈmau̇n-tə-blē 

adverb

Synonyms

• bulletproof
• impregnable
• indomitable
• insuperable
• invincible
• invulnerable
• unbeatable
• unconquerable
• unstoppable

Examples of insurmountable in a Sentence

They were faced with several insurmountable obstacles.

the familiar story of the underdog who ultimately triumphs despite insurmountable odds

Recent Examples on the Web

This critical shift in thinking and approach allows leaders to position mistakes as iterations, not insurmountable obstacles. —Mary Hemphill, Forbes, 19 Feb. 2025

The good news is that these barriers are not insurmountable. —Matt Abrahams, TIME, 17 Feb. 2025

Through a combination of perfect positioning and bravery, Alisson makes opportunities which should be routine for strikers into apparently insurmountable obstacles. —Gregg Evans, The Athletic, 16 Feb. 2025

The key is recognizing when casual betting crosses the line into problematic territory and knowing when to seek help before the losses become insurmountable. —Kimberly Wilson, Essence, 12 Feb. 2025

Word History

First Known Use

1690, in the meaning defined above

Rhymes for insurmountable

• accountable
• demountable
• uncountable
• countable
• unaccountable

Kids Definition

insurmountable

adjective

in·​sur·​mount·​able ˌin(t)-sər-ˈmau̇nt-ə-bəl 

: incapable of being surmounted