Как по Английски будет jongensachtig

adjective

Of, like, or characteristic of a male child or young man.

Примеры использования:

His boyish charm

adverb

In a way that is like a boy

Примеры использования:

He is still boyishly handsome at the age of 45., she wears her hair boyishly short.

adjective

Resembling or reminiscent of a gamin or gamine, especially (in later use) in appearance or build. also (occasionally) as noun: that which is gaminesque.