over the hill
US /ˌoʊvər ðə ˈhɪl/
UK /ˌoʊvər ðə ˈhɪl/

1.
melepasi zaman kegemilangan, terlalu tua
past one's prime; too old to be useful or effective
:
•
Some people think that once you reach 40, you're over the hill.
Sesetengah orang berpendapat bahawa apabila anda mencapai 40, anda sudah melepasi zaman kegemilangan.
•
Despite being over the hill, the veteran athlete still competed in the marathon.
Walaupun sudah melepasi zaman kegemilangan, atlet veteran itu masih bertanding dalam maraton.