Synonyms|10Antonyms|0|Broader|0Narrower|0Related|0
1
dead and gone(expression, adjective, idiom, nonexistent, vanished)
1
exanimate(adjective, nonexistent, vanished, inexistent)
1
extinct(adjective, dead, obsolete, nonexistent, vanished)
1
nonexistent
1
passed on(expression, adjective, nonexistent, vanished, inexistent)
0
destroyed(adjective, nonexistent, vanished, inexistent)
0
lost(adjective, nonexistent, vanished, inexistent)
0
out of date
0
ruined
0
unremembered
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APASmart Define. (2011). no longer known thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/no_longer_known/thesaurus/synonyms
ChicagoSmart Define. 2011. "no longer known thesaurus" https://smartdefine.org/no_longer_known/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2011, no longer known thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/no_longer_known/thesaurus/synonyms>.
MLASmart Define. "no longer known thesaurus" 21 May 2011. Web. 20 September 2026. <https://smartdefine.org/no_longer_known/thesaurus/synonyms>