in the prime of life

in the prime of life

Fig. in the best and most productive and healthy period of life. The good health of one's youth can carry over into the prime of life. He was struck down by a heart attack in the prime of life.
See also: life, of, prime

in the prime of (your) ˈlife

at the time in your life when you are strongest or most successful: He was struck down in the prime of his life by a heart attack.What do you mean, I’m old? I’m still in the prime of life! OPPOSITE: be past your/its best
See also: life, of, prime