Aging
Aging adjective - Being of advanced years and especially past middle age.
Usage example: more and more middle-aged adults must care for aging parents
Decrepit
Decrepit adjective - Worn and broken down by hard use.
Aging and decrepit are semantically related. Sometimes you can use "Aging" instead an adjective "Decrepit".
Nearby Word: decrepitation
Mutual synonyms
Both words in one sentence
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In the Popeye short Popeye, the Ace of Space, Popeye is abducted by aliens and is used as a test subject for their experiments, one of which is an aging machine that turns him old and decrepit.
Source: Rapid Aging -
In this case it caused accelerated aging to the point that a short while after their defeat they're seen as ancient and decrepit old fishmen too powerless to do anything.
Source: Power Degeneration - At first, Dorian's portrait does all the aging for him, letting him live his life as a gallivanting charmer - but when he can't take the portrait's honesty anymore, he stabs it, which causes him to age instantaneously to his true age: a decrepit, hideous old man.
Source: Rapid Aging
Cite this Source
Decrepit and Aging. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/aging/decrepit
Aging & Decrepit. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/aging/decrepit>.
Decrepit or Aging. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/aging/decrepit.
Google Ngram Viewer shows how "aging" and "decrepit" have occurred on timeline