unforgettable

adjective

un·​for·​get·​ta·​ble ˌən-fər-ˈge-tə-bəl 

: incapable of being forgotten : memorable

an unforgettable experience

unforgettably

ˌən-fər-ˈge-tə-blē 

adverb

Synonyms of unforgettable

• memorable

Examples of unforgettable in a Sentence

an unforgettable evening of dining and dancing

Recent Examples on the Web

The 2026 Billboard Latin Music Awards will bring together the biggest names in Latin music for a night of unforgettable performances, collaborations and special honors. — Sigal Ratner-Arias, Billboard, 13 Oct. 2026

And yet, in both features, the Azerbaijan rising star Eldar Isgandarov does just that, walking off with some of the funniest bits, the most outrageous expressions, the most unforgettable line readings. — Kate Erbland, IndieWire, 12 Oct. 2026

The pair are swept into outdoor adventures and cherished camp traditions, where an unforgettable group of Camp Rangers remind them that success is not always about accomplishments and sparks begin to fly on all levels as things do not go to plan. — Melanie Goodfellow, Deadline, 12 Oct. 2026

Its wonders include countryside wineries, ancient archaeological sites and unforgettable beaches. — Rick Steves, Washington Post, 11 Oct. 2026

Word History

First Known Use

1806, in the meaning defined above

Rhymes for unforgettable

• forgettable
• regrettable
• wettable

Kids Definition

unforgettable

adjective

un·​for·​get·​ta·​ble ˌən-fər-ˈget-ə-bəl 

: not to be forgotten : lasting in memory

unforgettably

-blē 

adverb