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

Although this level of customization—identifying individual customer groups and personalizing multiple marketing strategies at scale—is often an insurmountable task for a marketing team, AI is great for turning huge datasets into actionable insights. —Bill Geary, Forbes, 20 Mar. 2025

Her dominating presence is an unapologetic middle finger to an industry that has long created insurmountable barriers for so many other women who look like her. —Carly Lewis-Oduntan, refinery29.com, 13 Mar. 2025

That gave the Broncos an insurmountable 30-19 lead. —The San Diego Union Tribune, San Diego Union-Tribune, 12 Mar. 2025

For too long, credit card companies have abused working class Americans with absurd interest rates, trapping them in an almost insurmountable amount of debt. —Faisal Kutty, Newsweek, 11 Mar. 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