noun
tender age; innocent youth
Refers to the period of childhood when one is innocent, vulnerable, and endearing. Often used in nostalgic or protective contexts.
彼女はまだいたいけ盛りで、世間の厳しさを知らない。
She is still at a tender age and doesn't know the harshness of the world.
いたいけ盛りの子供たちが無邪気に遊んでいる。
Children at an innocent age are playing innocently.