8
senile(adjective, physical, enervated, irresilient)
7
aging(noun, adjective, decrease, old, stale)
6
aged(adjective, weak, feeble, old, matured)
6
old(adjective, gray, enervated, irresilient, elderly)
5
ageing
5
decrepit
5
elderly
4
ancient(adjective, old, gray, imbecile, elderly)
3
anile(adjective, weak, feeble, enervated, imbecile)
3
declining(noun, adjective, stale, fading, striction)
3
doting(adjective, weak, feeble, imbecile)
3
geriatric(adjective, enervated, irresilient)
2
doddering
2
hoary
2
oldish(adjective, enervated, irresilient)
2
superannuated
2
venerable
2
waning(noun, decrease, stale, ebb, fading)
1
along in years(expression, adjective, idiom, enervated, irresilient)
1
been around(expression, adjective, old, gray, elderly)
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APASmart Define. (2015). senescent thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/senescent/thesaurus/synonyms
ChicagoSmart Define. 2015. "senescent thesaurus" https://smartdefine.org/senescent/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, senescent thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/senescent/thesaurus/synonyms>.
MLASmart Define. "senescent thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/senescent/thesaurus/synonyms>