insurmountable
adjective/ɪnsərˈmaʊntəbəl/
Frequency rank: #12,658 most common English word
Meaning
Too great to be overcome; impossible to surmount.

Example sentence
The team refused to give up, even when the obstacles seemed insurmountable.
Synonyms & related words
- overwhelming
- unconquerable
- impossible
- hopeless
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