9
ripening(noun, verb, developing)
6
ageing(noun, adjective)
6
seasoning(noun, verb)
5
maturing(noun, verb, stale, senescent, fading)
5
declining(noun, verb, adjective, stale, fading)
5
elderly
5
senescent(noun, adjective, decrease, old, stale)
4
senescence
4
maturation(noun, senescent, upgrowth)
3
waning(noun, decrease, stale, ebb, senescent)
3
aged
3
developing(noun, verb, adjective, stale, fading)
3
fading
3
mellowing(noun, verb, adjective, stale, fading)
3
old(adjective, aged)
2
advancing(adjective, ripening, developing)
2
age
2
agedness
2
decrepitude
2
deteriorating(verb, adjective)
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APASmart Define. (2015). aging thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/aging/thesaurus/synonyms
ChicagoSmart Define. 2015. "aging thesaurus" https://smartdefine.org/aging/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, aging thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/aging/thesaurus/synonyms>.
MLASmart Define. "aging thesaurus" 13 October 2015. Web. 22 September 2026. <https://smartdefine.org/aging/thesaurus/synonyms>