| stale(adjective, original, decayed, overused) | |
| past(adjective, adverb, common, experienced) | |
| ancient | |
| antique | |
| archaic | |
| immemorial(adjective, ancient) | |
| antiquarian(adjective, ancient) |
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| APA | Smart Define. (2016). new thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/new/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "new thesaurus" https://smartdefine.org/new/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, new thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/new/thesaurus/antonyms>. |
| MLA | Smart Define. "new thesaurus" 22 March 2016. Web. 25 September 2026. <https://smartdefine.org/new/thesaurus/antonyms> |