(a.) Versed in books; having knowledge derived from books.

abstract armchair book-learned bookish booky chimerical classroom closet collegiate conjectural cross-disciplinary devoted to studies diligent donnish dryasdust erudite extramural graduate graduate-professional hypothetic hypothetical ideal idealistic imaginary impractical interdisciplinary interscholastic intramural ivory-tower learned lettered mandarin moot notional owlish pedagogic pedagogical pedantic postgraduate postulatory preceptorial preschool professional professorial professorlike rabbinic scholarly scholastic school schoolish schoolmastering schoolmasterish schoolmasterlike schoolmasterly schoolmistressy schoolteacherish schoolteachery speculative studious teacherish teacherlike teachery teachy theoretical tutorial university unpractical unrealistic utopian visionary