プログレッシブ和英中辞典(第4版)の解説
じゅくねん【熟年】
middle age
熟年の労働者
a middle-aged worker
熟年者
〔総称〕the middle-aged；〔初老の〕those who are past their prime
熟年離婚
(a) gray divorce; (a) divorce late [later] in life; (a) middle-age divorce
彼は熟年離婚した
He was divorced late in life.／He got a divorce when he was middle-aged.
熟年離婚が増えている
「Gray divorce [The number of gray divorces] is on the rise.