unforgettable
Americanadjective
adjective
Other Word Forms
Etymology
Origin of unforgettable
1800–10; un- 1 + forgettable ( def. )
Explanation
Use the adjective unforgettable to describe things that are so meaningful or important that you could never forget them, like the taste of your grandma's apple pie or your first kiss. Things that linger forever in your memory are unforgettable. You might describe a devastating house fire this way, or your first trip to Paris. While the meaning of unforgettable is easy to decipher once you spot the root word forget, it's a lot harder to spell. Remember the double t and the able ending, and you'll do fine.
Vocabulary lists containing unforgettable
"To Helen Keller" and "Marked/Dusting"
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"One Crazy Summer" by Rita Williams-Garcia, List 5
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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.
Bernthal, who plays Sonny, has his own wayward machismo and hapless sensitivity, the very qualities that made Al Pacino unforgettable in the role of the bungling bandit with a Catholic conscience.
From Los Angeles Times • Apr. 29, 2026
With Springsteen taking the microphone, the audience was treated to an unforgettable version of The Doors’ “Light My Fire,” followed by Steve Earle’s rip-roaring take on “Roadhouse Blues.”
From Salon • Apr. 20, 2026
"We look forward to celebrating these remarkable artists at this year's ceremony -– it's going to be an unforgettable night."
From Barron's • Apr. 14, 2026
There were even mock-ups of unforgettable Macintosh icons like Trash, Bomb and Happy Mac.
From The Wall Street Journal • Apr. 3, 2026
If she managed to get through an entire week without crying, overcoming all the tests Nicolas imposed, she won a prize, which almost always consisted of a motorcycle ride at breakneck speed—an unforgettable experience.
From "The House of the Spirits: A Novel" by Isabel Allende
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
