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[uhn-fer-get-uh-buh l] /ˌʌn fərˈgɛt ə bəl/
impossible to forget; indelibly impressed on the memory:
scenes of unforgettable beauty.
Origin of unforgettable
1800-10; un-1 + forgettable
Related forms
unforgettableness, noun
unforgettably, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for unforgettable
Contemporary Examples
Historical Examples
  • After that inimitable, unforgettable "Jamais, jamais, jamais!"

    In the Heart of Vosges Matilda Betham-Edwards
  • It was the longest ride she had ever taken, and that of itself would have made it unforgettable.

    Mary-'Gusta Joseph C. Lincoln
  • A stir on the road made me look up—and then I saw my unforgettable Englishman.

    Some Reminiscences Joseph Conrad
  • This is the real object-lesson of this war, its unforgettable information.

  • Where is he now—the unknown, the unnameable, the unforgettable ideal?

    A Hungarian Nabob Maurus Jkai
British Dictionary definitions for unforgettable


impossible to forget; highly memorable
Derived Forms
unforgettably, 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 unforgettable

1806, from un- (1) "not" + forgetable (see forget). Related: Unforgettably.

Online Etymology Dictionary, © 2010 Douglas Harper
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