Dictionary / Vocabulary / いい年
いいとし
mature age; advanced age; maturity; age when one is old enough to know better
Also written いい歳、好い年
彼女はもう本当のことを知ってもいい歳だ。
She's old enough to know the truth.
君はもっと分別があってもいい年だよ。
You are old enough to know better.
みんないい年を過ごそうぜ。
Everybody, let's have a good year.