| out of date(expression, adjective, idiom) | |
| dead(adjective, odd, out, old, past) | |
| dowdy(adjective, dull, new, odd, old) | |
| bygone(adjective, plain, new, last, original) | |
| antediluvian(adjective, original, old, obsolete, antiquated) | |
| behind the times(expression, adjective, idiom, odd, current) | |
| fusty(adjective, new) | |
| moth-eaten(adjective, original, old, stale, shabby) | |
| outworn(adjective, dead, odd, out, old) | |
| expired(adjective, feature, characteristic, trait) | |
| oldfangled(last, original, dead, odd, old) | |
| date | |
| defunct(adjective, dead, past, lost, previous) | |
| disused | |
| stale(adjective, last, original, outdated, antiquated) | |
| aged | |
| anachronistic | |
| chronological | |
| moldy(adjective, plain, dead, odd, out) | |
| olden(adjective, original, dead, odd, old) |
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| APA | Smart Define. (2015). dated thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/dated/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "dated thesaurus" https://smartdefine.org/dated/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, dated thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/dated/thesaurus/synonyms>. |
| MLA | Smart Define. "dated thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/dated/thesaurus/synonyms> |