pedantic

Characterized by a narrow, often ostentatious concern for academic knowledge and formal rules.

Of, pertaining to, or characteristic of a pedant or pedantry; overrating the importance of mere learning; also, making an undue or inappropriate display of learning; of language, style, etc., exhibiting pedantry; absurdly learned.

Of or pertaining to a pedant; characteristic of, or resembling, a pedant; ostentatious of learning.

Like a pedant, overly concerned with formal rules and trivial points of learning.

Being showy of one’s knowledge, often in a boring manner.