From Longman Dictionary of Contemporary Englishmiddle-agedˌmiddle-ˈaged ●●○ adjective 1 TMCAGEbetween the ages of about 40 and 60 a middle-aged businessman2 OLD/NOT NEWsomeone who seems middle-aged seems rather dull and does not do exciting or dangerous things Living with Henry had made her feel middle-aged.3 → middle-aged spread
Examples from the Corpus
middle-aged• SHe tried to imagine the soul of a middle-aged man living in this flesh.• He and a 12-year-old boy robbed a middle-aged man of £25 at gunpoint in a Leeds park.• Then a third patient, and a fourth and a fifth, all middle-aged men, all soon dead.• My wife and I had bought a home and we were ready to settle down into a comfortable middle-aged, middle-class rut.• The condition predominantly affects middle-aged or elderly females.• It is commonplace to see middle-aged or elderly men as newscasters, but not yet women.• Can an old affair that lasted only a year rekindle as middle-aged passion?• He proved that it is indeed possible to reverse coronary heart disease in unhealthy middle-aged people.