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[ih-maj-uh-nuh-buh l] /ɪˈmædʒ ə nə bəl/
capable of being imagined or conceived.
Origin of imaginable
1325-75; Middle English < Late Latin imāginābilis, equivalent to Latin imāginā(rī) to imagine + -bilis -ble
Related forms
imaginableness, noun
imaginably, adverb
unimaginable, adjective
unimaginableness, noun
unimaginably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for unimaginable
Contemporary Examples
Historical Examples
  • In her eyes that were sea-grey there was an unimaginable calm.

    Rosinante to the Road Again

    John Dos Passos
  • All the world about him erupted in unimaginable brilliance; then darkness fell.

    The Black Star Passes John W Campbell
  • But Dan, as Don Juan, is one of the most unimaginable things!

    That Girl Montana Marah Ellis Ryan
  • From the column there emerged a shape of unimaginable glory.

    Zanoni Edward Bulwer Lytton
  • Along the streets crowd an unimaginable assortment of people.

    The Trembling of a Leaf William Somerset Maugham
British Dictionary definitions for unimaginable


difficult or impossible to believe; inconceivable
Derived Forms
unimaginably, 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
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Word Origin and History for unimaginable

1610s, from un- (1) "not" + imaginable. Related: Unimaginably.



late 14c., ymaginable, from Old French imaginable and directly from Late Latin imaginabilis, from Latin imaginari (see imagine). Related: Imaginably.

Online Etymology Dictionary, © 2010 Douglas Harper
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