unforgettable

adj. not capable of being forgotten, not being able to disappear from memory

Unforgettable may refer to: In music:"Unforgettable" (song), a 1951 song popularized by Nat King ColeUnforgettable... with Love, a 1992 album by Natalie Cole, including a version of the 1951 songUnforgettable (Joe Pass album), a 1998 album by Joe PassUnforgettable (Leroy Hutson album), a 1979 album by Leroy HutsonUnforgettable (Selena), a 2005 album by SelenaA 2007 single by Melon Kinenbi
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Adjective
1. impossible to forget
(antonym) forgettable
(similar) haunting, persistent

(a.)
Not forgettable; enduring in memory.
  

Synonyms and related words:
celebrated, conspicuous, distinguished, eminent, esteemed, estimable, exceptional, extraordinary, haunting, indelible, marked, memorable, nagging, noble, notable, noteworthy, obsessive, of mark, outstanding, persistent, prestigious, prominent, rare, recurrent, remarkable, rememberable, reputable, salient, signal, special, striking, telling