49 entries under noun topic. ×

9
senility(decline, weakness, age, infirmity)
7
aging
7
decrepitude(decline, collapse, deterioration, age)
6
age(decline, age, infirmity, feebleness)
6
agedness(age, youth)
6
ageing
6
old age(expression, idiom, decline, period)
4
dotage(decline, age, infirmity, feebleness)
3
anility(decline, age)
3
caducity
3
decay(decline, collapse, down, deterioration)
3
decline(collapse, deterioration, decay, impairment)
3
elderliness(age, youth)
3
second childhood(expression, idiom, decline, age)
3
senectitude(decline, weakness, age, infirmity)
2
blight(decline, collapse, deterioration, impairment)
2
oldness
2
weakness(informal, age)
2
year(age, youth)
1
advanced age(expression, idiom, age)
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APASmart Define. (2015). senescence thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/senescence/thesaurus/synonyms
ChicagoSmart Define. 2015. "senescence thesaurus" https://smartdefine.org/senescence/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, senescence thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/senescence/thesaurus/synonyms>.
MLASmart Define. "senescence thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/senescence/thesaurus/synonyms>