34 entries under mature topic. ×
| ancient(adjective, dead, tired, old, gray) | |
| hoary(tired, old, gray, venerable) | |
| venerable(tired, old, gray, early) | |
| superannuated(dead, tired, old, gray) | |
| along in years(expression, tired, gray, aged) | |
| elderly(adjective, tired, old, gray) | |
| veteran(adjective, tired, gray, aged) | |
| aged(tired, old, gray, venerable) | |
| broken down(expression, tired, gray, aged) | |
| debilitated(tired, gray, aged, older) | |
| decrepit(tired, gray, aged, older) | |
| enfeebled(tired, gray, aged, older) | |
| exhausted(tired, gray, aged, older) | |
| experienced(tired, gray, aged, older) | |
| geriatric(tired, gray, aged, older) | |
| getting on(expression, tired, gray, aged) | |
| gray(tired, aged, older, elderly) | |
| gray-haired(tired, gray, aged, older) | |
| grizzled(tired, gray, aged, older) | |
| impaired(tired, gray, aged, older) |
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| APA | Smart Define. (2015). fossil thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/fossil/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "fossil thesaurus" https://smartdefine.org/fossil/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, fossil thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fossil/thesaurus/synonyms>. |
| MLA | Smart Define. "fossil thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/fossil/thesaurus/synonyms> |