121 entries under adjective topic. ×
| out(informal, odd, old, primitive) | |
| unfashionable(bad, cool, last, original) | |
| bygone(last, original, dead, odd) | |
| expired(feature, characteristic, trait, the past) | |
| out of fashion(expression, idiom, bad, cool) | |
| old-time(last, original, odd, old) | |
| stale(last, original, tired, other) | |
| superseded(new, unfashionable, antiquated, archaic) | |
| unused | |
| defunct(tired, lost, functioning, invalid) | |
| demoded(bad, cool, odd, old) | |
| musty(odd, old, primitive, unfashionable) | |
| outworn(odd, old, primitive, unfashionable) | |
| past(last, original, dead, odd) | |
| unstylish(bad, cool, odd, old) | |
| behind the times(expression, idiom, odd, current) | |
| discarded(rejected, vogue) | |
| gone(vogue, the past) | |
| hackneyed(last, original, tired, stale) | |
| abandoned |
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| APA | Smart Define. (2016). obsolete thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/obsolete/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "obsolete thesaurus" https://smartdefine.org/obsolete/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, obsolete thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/obsolete/thesaurus/synonyms>. |
| MLA | Smart Define. "obsolete thesaurus" 28 March 2016. Web. 24 September 2026. <https://smartdefine.org/obsolete/thesaurus/synonyms> |