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WordNet-Online 
 Definitions from WordNet
Adjective insurmountable has 2 senses 
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| Definitions from the WebinsurmountablePart of Speech: adjective Sense: unable to be overcome or dealt with successfully Usage: 
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| insurgencies insurgency-hit insurgency insurgent insurgent  insurgents insuring insurity insurmountable insurmoutable insurrection insurrectional insurrectionaries insurrectionary insurrectionist insurrections insurrence 
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