| out of it(expression, idiom, odd, old, primitive) | |
| out of sight(expression, idiom) | |
| out of use(expression, idiom) | |
| out the window(expression, idiom, split, away, lacking) | |
| overthrown | |
| passive | |
| past and gone(expression, idiom) | |
| perfected | |
| perish(verb, inexistence) | |
| previous(adjective, dead, past, lost, former) | |
| quit(split, away, lacking, finished, absent) | |
| quondam(adjective, dead, past, lost, previous) | |
| removed(split, away, lacking, finished, absent) | |
| rococo(adjective, odd, old, primitive, unfashionable) | |
| run-off(split, away, lacking, finished, absent) | |
| satisfied | |
| set at rest(expression, idiom) | |
| settled | |
| shifted(split, away, lacking, finished, absent) | |
| shot |
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| APA | Smart Define. (2016). extinct thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/extinct/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "extinct thesaurus" https://smartdefine.org/extinct/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2016, extinct thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/extinct/thesaurus/synonyms>. |
| MLA | Smart Define. "extinct thesaurus" 10 February 2016. Web. 20 September 2026. <https://smartdefine.org/extinct/thesaurus/synonyms> |