inconceivable

[ in-kuhn-see-vuh-buhl ]
See synonyms for inconceivable on Thesaurus.com
adjective
  1. not conceivable; unimaginable; unthinkable

  2. unbelievable; incredible.

Origin of inconceivable

1
First recorded in 1625–35; in-3 + conceivable

Other words from inconceivable

  • in·con·ceiv·a·bil·i·ty, in·con·ceiv·a·ble·ness, noun
  • in·con·ceiv·a·bly, adverb

Words Nearby inconceivable

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How to use inconceivable in a sentence

British Dictionary definitions for inconceivable

inconceivable

/ (ˌɪnkənˈsiːvəbəl) /


adjective
  1. incapable of being conceived, imagined, or considered

Derived forms of inconceivable

  • inconceivability or inconceivableness, noun
  • inconceivably, 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