Synonyms of senescence

1 Syllable
years, year
2 Syllables
oldness, decay, weakness
3 Syllables
agedness, fatuity, spoilation, putridness, spoilage, gangrene, lifespan
4 Syllables
anility, elderliness, infirmity, putrefaction, putrescence, putridity, senility
5 Syllables
decrepitude, senectitude, imbecility