24
lost(verb, adjective, sad, unhappy, miserable)
10
abandoned(adjective, sad, unhappy, gloomy, miserable)
10
disregarded(verb, adjective, neglected)
10
extinct(adjective, dead, past, lost, previous)
9
bygone(adjective, out, past, oblivion, the past)
9
past(adjective, out, preceding, done, the past)
9
obliterated(verb, adjective, out, forgot)
8
gone(adjective, dead, out, past, lost)
8
antiquated(adjective, dead, past, lost, previous)
8
elapsed(verb, adjective, the past, forgot)
8
neglected(verb, adjective, neglected, forgot)
8
omitted(verb, adjective, out, excluded, forgot)
6
forgot(verb, neglected, forgave, forgot)
6
forlorn(adjective, hopeless, desolate, inconsolable)
6
overlooked(verb, neglected, forgave, forgot)
5
remote
5
irrecoverable(adjective, the past)
5
antebellum
5
blown over(verb, expression, adjective, phrasal verb, out)
5
erased(verb, adjective, out, forgot)
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APASmart Define. (2015). forgotten thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/forgotten/thesaurus/synonyms
ChicagoSmart Define. 2015. "forgotten thesaurus" https://smartdefine.org/forgotten/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, forgotten thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/forgotten/thesaurus/synonyms>.
MLASmart Define. "forgotten thesaurus" 30 October 2015. Web. 20 September 2026. <https://smartdefine.org/forgotten/thesaurus/synonyms>