2
noble(adjective, great, famous, outstanding, brilliant)
2
rare
2
red-letter(adjective, great, extraordinary, outstanding, notable)
2
reputable(adjective, great, famous, outstanding, noble)
2
super(adjective, memorable)
1
estimable
1
acclaimed(adjective, great, famous, outstanding, noble)
1
ageless
1
arresting(adjective, great, famous, outstanding, noble)
1
big-league(great, extraordinary, outstanding, notable)
1
big name(expression, adjective, great, famous, outstanding)
1
bodacious(great, extraordinary, outstanding, notable)
1
brilliant(adjective, great, famous, outstanding, noble)
1
critical(great, extraordinary, outstanding, notable)
1
crucial(great, extraordinary, outstanding, notable)
1
decisive(great, extraordinary, outstanding, notable)
1
despised
1
dignified(adjective, great, famous, outstanding, noble)
1
distingué(great, famous, outstanding, noble, brilliant)
1
egregious
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APASmart Define. (2016). unforgettable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unforgettable/thesaurus/synonyms
ChicagoSmart Define. 2016. "unforgettable thesaurus" https://smartdefine.org/unforgettable/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, unforgettable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unforgettable/thesaurus/synonyms>.
MLASmart Define. "unforgettable thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/unforgettable/thesaurus/synonyms>