middle-aged

noun
1
neither young nor old
میانسال
2
people who are middle-aged
میانسالان, افراد میانسال
3
rather boring and old-fashioned
بی‌روح, کسل‌کننده, قدیمی, قدیمی‌مدل, سنتی, خشک
He has a very middle-aged attitude to life.