adjective

(of a person or way of life) devoted to reading and studying.

a bookish, untidy boy

studious,scholarly,academic,literary,intellectual,highbrow,erudite,learned,well read,widely read,educated,well educated,well informed,knowledgeable,cultured,accomplished,pedantic,pedagogical,donnish,bluestocking,cerebral,serious,earnest,thoughtful,impractical,ivory-towerish,brainy,egghead,lettered,clerkly