BOYISH Meaning of BOYISH in English — boyishly , adv. — boyishness , n./boy"ish/ , adj.of or befitting a boy; engagingly youthful or innocent: a boyish grin.[ 1540-50; BOY + -ISH 1 ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012