61 entries under obsolete topic. ×
| done(last, original, past, other) | |
| erstwhile(adjective, last, original, dead, remote) | |
| former(adjective, last, original, dead, remote) | |
| gone(adjective, dead, past, lost, previous) | |
| immemorial(last, original, past, other) | |
| late(adjective, last, original, dead, past) | |
| of yore(expression, adjective, last, original, dead) | |
| old-fangled(adjective, odd, old, primitive, unfashionable) | |
| once(last, original, past, other) | |
| onetime(last, original, past, other) | |
| original(last, past, previous, other) | |
| primitive(adjective, last, original, odd, old) | |
| pristine(last, original, past, other) | |
| quondam(adjective, last, original, dead, remote) | |
| sometime(adjective, last, original, dead, remote) | |
| time-worn(last, original, past, other) | |
| traditional(last, original, old, past) | |
| vanished(adjective, dead, past, lost, previous) | |
| venerable(original, old, past, early) | |
| cast off(expression, original, outdated) |
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| APA | Smart Define. (2015). out-of-date thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/out-of-date/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "out-of-date thesaurus" https://smartdefine.org/out-of-date/thesaurus/synonyms (accessed October 2, 2026). |
| Harvard | Smart Define 2015, out-of-date thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/out-of-date/thesaurus/synonyms>. |
| MLA | Smart Define. "out-of-date thesaurus" 13 April 2015. Web. 2 October 2026. <https://smartdefine.org/out-of-date/thesaurus/synonyms> |