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"
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
"One Crazy Summer" by Rita Williams-Garcia, List 5
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
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.
And as with every World Cup, there undoubtedly will be unforgettable moments.
From Los Angeles Times • Jun. 12, 2026
From stunning goals and shocking interviews to unforgettable celebrations, some sporting moments are made to be watched, not just read about.
From BBC • Jun. 1, 2026
In one single unforgettable day—Friday, May 9, 1873—prices on the Vienna Stock Exchange plunged by 45%.
From The Wall Street Journal • May 29, 2026
Since that unforgettable US Open run, Raducanu has shown she plays better when surrounded by long-time confidants who she trusts implicitly.
From BBC • May 22, 2026
Her grandfather’s sermons went out the window when Alba set eyes on Miguel one unforgettable rainy afternoon in the cafeteria of the university.
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.
