middle-aged
US /ˌmɪd.əlˈeɪdʒd/
UK /ˌmɪd.əlˈeɪdʒd/

1.
pertengahan umur, separuh baya
being in the period of life between youth and old age, usually considered to be from about 45 to 65
:
•
My parents are both middle-aged.
Ibu bapa saya kedua-duanya pertengahan umur.
•
The survey targeted middle-aged professionals.
Tinjauan itu menyasarkan profesional pertengahan umur.