Letters that make boyish
s, o, b, h, i, y are letters that make 'boyish'
1 possible definitions for 'boyish'
Under this definition, boyish is an adjective and has the following properties:
boylike, schoolboyish have the same meaning as 'boyish'
boyishness is a derivative of boyish.
"a boyish grin", "schoolboyish pranks"