24 entries under the past topic. ×

11
gone(adjective, sad, hidden, hopeless, forlorn)
7
extinct(adjective, forgotten)
7
forgotten(adjective, forgotten)
6
elapsed(adjective, forgotten)
4
expired
3
bygone
3
obsolete
2
antebellum
2
blown over(verb, phrasal verb)
2
exploded
2
gone by(verb, phrasal verb)
2
has-been
2
lapsed
2
no more(expression, idiom)
2
over
2
passed away(verb, phrasal verb)
2
past
2
run out(verb, phrasal verb)
1
antediluvian
1
foregone
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APASmart Define. (2015). irrecoverable thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/irrecoverable/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrecoverable thesaurus" https://smartdefine.org/irrecoverable/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, irrecoverable thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/irrecoverable/thesaurus/synonyms>.
MLASmart Define. "irrecoverable thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/irrecoverable/thesaurus/synonyms>