[uhn-fer-get-uh-buh l]
See more synonyms for unforgettable on Thesaurus.com

Origin of unforgettable

1800–10; un-1 + forgettable
Related formsun·for·get·ta·ble·ness, nounun·for·get·ta·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unforgettable

Contemporary Examples of unforgettable

Historical Examples of unforgettable

  • 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.


    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?

British Dictionary definitions for unforgettable


  1. impossible to forget; highly memorable
Derived Formsunforgettably, 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 unforgettable

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

Online Etymology Dictionary, © 2010 Douglas Harper