1
obsolescence
1
obsoleteness
1
old bones(life, period, age)
1
older
1
pensionable age
1
primogeniture
1
retirement age(life, period, age)
1
ricketiness
1
ripe old age(expression, idiom)
1
sear and yellow leaf(life, period, age)
1
senectitude
1
senescence(noun, age)
1
senior citizenship
1
staling
1
vintage
1
white hairs
1
winter of life(life, period, age)
0
advanced
0
aeon
0
ageing
11 years ago|2.1k views|share |citing 
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>