139 entries under noun topic. ×
| senescence(decline, infirmity, feebleness, youth) | |
| seniority | |
| wane(verb, older) | |
| world(period, era, days, times) | |
| caducity(infirmity, feebleness, debility) | |
| decade(time, period) | |
| forever(future, infinity, perpetuity) | |
| historic period(expression, idiom) | |
| interim(time, duration) | |
| majority | |
| measure | |
| month | |
| perpetuity(future, infinity, forever) | |
| second | |
| week | |
| aging | |
| antique(verb, change, cover, obscure) | |
| continuance(present, turn, point, stretch) | |
| course(time, set, round, period) | |
| decrepitude(ruin, infirmity, feebleness) |
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| APA | Smart Define. (2016). age thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/age/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "age thesaurus" https://smartdefine.org/age/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, age thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/age/thesaurus/synonyms>. |
| MLA | Smart Define. "age thesaurus" 2 March 2016. Web. 27 September 2026. <https://smartdefine.org/age/thesaurus/synonyms> |