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Synonyms

unforgettable

American  
[uhn-fer-get-uh-buhl] / ˌʌn fərˈgɛt ə bəl /

adjective

  1. impossible to forget; indelibly impressed on the memory.

    scenes of unforgettable beauty.


unforgettable British  
/ ˌʌnfəˈɡɛtəbəl /

adjective

  1. impossible to forget; highly memorable

"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

Other Word Forms

  • unforgettableness noun
  • unforgettably adverb

Etymology

Origin of unforgettable

1800–10; un- 1 + forgettable ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

There were even mock-ups of unforgettable Macintosh icons like Trash, Bomb and Happy Mac.

From The Wall Street Journal • Apr. 3, 2026

For a boyhood City fan to score twice at Wembley Stadium, this fairytale story has produced an unforgettable moment for the player, manager Pep Guardiola and supporters alike.

From BBC • Mar. 22, 2026

Xander Harris may have been the “normal” one in a cast of extraordinary characters, but Brendon’s performance ensured he was unforgettable — both to fans and to the colleagues who mourn his passing.

From Salon • Mar. 21, 2026

“While our hearts are broken, we are deeply grateful for the life he lived and for the unforgettable moments we were blessed to share with him,” the family said in its statement.

From Los Angeles Times • Mar. 20, 2026

One unforgettable incident with the electric fence illustrates his persistence.

From "Woodsong" by Gary Paulsen