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insurmountable
adjective
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How to pronounce insurmountable:

Definition of insurmountable:

insurmountable (adjective):
impossible to overcome
incapable of being surmounted insuperable
not capable of being surmounted or overcome.

Synonyms for insurmountable:

unbeatableindomitableimpregnableunconquerableimpassableinsuperableuntouchableinvulnerableoverwhelmingunstoppable
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Antonyms for insurmountable:

achievablenakedsurmountableassailablepoordoablebreakablesensitiveweaksusceptible
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Other 5-syllable words like insurmountable

Here are some other common words that have 5 syllables, like insurmountable does.

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