Insurmountable: meaning, example and synonyms
Insurmountableadj. Too great to be overcome.

Example
What once seemed an insurmountable barrier, the cost of sequencing a genome, has fallen so sharply that the test is now routine in many clinics.
- Part of speech
- adjective
- Synonyms
- insuperable, overwhelming, impassable, unbeatable
- Antonyms
- surmountable, manageable, achievable, beatable
- Memory tip
- in- ("not") + surmount ("climb over"): a peak you can't climb.
Add Insurmountable to your spaced-repetition deck. No account needed; progress is saved on this device.
Check yourself: Insurmountable in context
The team's lead in the final minutes seemed ______, yet their opponents scored three times to win the match.
Answer: insurmountable. The lead looked impossible to overcome, which makes the comeback surprising. The other choices don't describe a lead that can't be beaten.
Language barriers once seemed ______ to the village's new arrivals, but within a year many of them were teaching classes in their adopted tongue.
Answer: insurmountable. The barriers at first looked impossible to overcome, which the next clause reverses. Heterogeneous, exhaustive and defunct don't fit.