春秋鼎盛

chūnqiūdǐngshèng
the prime of one's life

CEDICT

to be in the prime of life

Wiktionary

正当壮盛之年。

重編國語辭典

Entry Composition

1 春秋 chūnqiū
  1. spring and autumn
  2. four seasons
  3. year
  4. a person's age
  5. annals (used in book titles)
2 鼎盛 dǐngshèng
  1. thriving
  2. flourishing

Related entries

盛年 shèngnián the prime of one's life
英年 yīngnián
  1. the prime of one's life
  2. youthful years
青壮年 qīngzhuàngnián the prime of one's life