• synonyms


[in-soo-per-uh-buh l]
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  1. incapable of being passed over, overcome, or surmounted: an insuperable barrier.
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Origin of insuperable

First recorded in 1300–50; Middle English word from Latin word insuperābilis. See in-3, superable
Related formsin·su·per·a·bil·i·ty, in·su·per·a·ble·ness, nounin·su·per·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for insuperable

impossible, insurmountable, overwhelming

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British Dictionary definitions for insuperable


  1. incapable of being overcome; insurmountable
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Derived Formsinsuperability or insuperableness, nouninsuperably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for insuperable


mid-14c., "unconquerable," from Latin insuperabilis "that cannot be passed over, unconquerable," from in- "not, opposite of" (see in- (1)) + superabilis "that may be overcome," from superare "to overcome," from superus "one that is above," from super "over" (see super-). Figurative use from 1650s. Related: Insuperably.

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Online Etymology Dictionary, © 2010 Douglas Harper