Old age
Prime
Prime noun - A state or time of great activity, thriving, or achievement.
Mutual synonyms
Both terms in one sentence
-
As such, he is quick to take up the series' role of "prime schemer" once Livia finally dies of old age.
Source: Series / I, Claudius -
He is clearly into old age and admits to being past his prime, but drinking from it has kept him alive for centuries.
-
Well, in his old age (with him admitting he's not as good as he was in his prime) he's shown fighting five opponents... And shooting them eight times each in less than a second.
Source: Fastest Gun in the West
Cite this Source
Prime and Old age. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/old_age/prime
Old age & Prime. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/old_age/prime>.
Prime or Old age. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/old_age/prime.
Google Ngram Viewer shows how "old age" and "prime" have occurred on timeline