- Definitions|1
- Thesaurus|564
- Abbreviations|0
35 entries under adjective topic. ×
| conventional | |
| customary | |
| old as Methuselah(idiom, new) | |
| old as the hills(idiom, new) | |
| well-established | |
| constant(familiar, traditional, long-established) | |
| fixed | |
| grey | |
| habitual | |
| honoured | |
| respected | |
| revered | |
| rooted | |
| set | |
| venerated |
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| APA | Smart Define. (2016). age-old thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/age-old/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "age-old thesaurus" https://smartdefine.org/age-old/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, age-old thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/age-old/thesaurus/synonyms>. |
| MLA | Smart Define. "age-old thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/age-old/thesaurus/synonyms> |