zhuàng​nián

prime of life

壮年 (壯年) zhuàng​nián
prime of life time word
the period of life, typically between 30 and 40, when a person is at their peak of physical strength and vigor
mature time word
having reached a peak state of development, productivity, or completion

Frequency

Movie subtitles
0.210 per million appears in 0% of films
Written text
0.948 per million

Sources

Definitions
CC-CEDICT