13 entries under adjective topic. ×

6
ageing
5
declining(noun, verb, stale, fading)
5
elderly
5
senescent(noun, decrease, old, stale)
3
developing(noun, verb, stale, fading)
3
mellowing(noun, verb, stale, fading)
3
old
2
advancing(ripening, developing)
2
deteriorating
1
cycling
1
getting on(noun, verb, expression, phrasal verb)
0
getting up in years(expression, idiom, old)
0
long in the tooth
10 years ago|5.8k views|share |citing 
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>