Try Our Apps


90s Slang You Should Know


[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.
Cite This Source
Examples from the Web for unforgettable
Contemporary Examples
Historical Examples
  • Which I hope relieves you of any fear that she's an unforgettable Character.

    Industrial Revolution Poul William Anderson
  • It was an unforgettable experience, like a narrow escape from lynching.

    The Dude Wrangler Caroline Lockhart
  • "It is an unforgettable night," said the girl in the rose cloak.

    The Palace of Darkened Windows Mary Hastings Bradley
  • After that inimitable, unforgettable "Jamais, jamais, jamais!"

    In the Heart of Vosges Matilda Betham-Edwards
  • Beneath the rose are five tall pointed windows of unforgettable splendour and extraordinary interest.

    The Story of Chartres Cecil Headlam
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
Cite This Source
Word Origin and History for unforgettable

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for unforgettable

Few English speakers likely know this word

Word Value for unforgettable

Scrabble Words With Friends

Nearby words for unforgettable