9
senility(noun, life, period, age)
7
age(noun, age, stage, infirmity, feebleness)
7
old age(noun, expression, idiom, life, period)
6
longevity(noun, age)
6
anility(noun, life, period, age)
5
eld(noun, life, period, age)
4
antiquity
4
caducity(noun, age)
4
declining years(expression, idiom, life, period, age)
4
dotage(noun, age)
4
second childhood(expression, idiom, life, period, age)
3
anno(noun, life, period, age)
3
decrepitude
3
elderliness(noun, age, infirmity, feebleness)
3
hoar(noun, life, period, age)
3
superannuation(noun, age)
3
time(noun, age)
2
advanced age(expression, idiom, age)
2
ancientness
2
decay
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APASmart Define. (2015). oldness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/oldness/thesaurus/synonyms
ChicagoSmart Define. 2015. "oldness thesaurus" https://smartdefine.org/oldness/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, oldness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/oldness/thesaurus/synonyms>.
MLASmart Define. "oldness thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/oldness/thesaurus/synonyms>