95 entries under idiom topic. ×
| long in the tooth(expression, adjective) | |
| look appear | |
| not getting any younger(expression, adjective, aged, older) | |
| old age | |
| on its last legs(expression, adjective, dilapidated, decaying) | |
| on the ropes(expression, enervated, senescent, irresilient) | |
| open country | |
| past its best(expression, adjective, hard, sour) | |
| past its sell-by date(expression, adjective, hard, sour) | |
| past your prime(expression, adjective) | |
| run to seed(expression, age) | |
| stay overnight | |
| stricken in years(expression, age) | |
| sick as a dog(expression, enervated, senescent, irresilient) | |
| sick as dog(expression, enervated, senescent, irresilient) |
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| APA | Smart Define. (2016). old thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/old/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "old thesaurus" https://smartdefine.org/old/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, old thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/old/thesaurus/synonyms>. |
| MLA | Smart Define. "old thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/old/thesaurus/synonyms> |