1. (a.) Of, pertaining to, befitting, or resembling, a child.

2. (a.) Puerile; trifling; weak.

arrested asinine babish babyish backward beardless boyish boylike calflike childlike coltish decrepit doddering doddery doited doting fatuous foolish girlish girllike immature inexperienced infantile infantine juvenile kiddish maiden maidenly moronic naive puerile puplike puppyish puppylike retarded senile silly simple slow sophomoric underdeveloped undeveloped unsophisticated wanting