Nouns

(n)academician, academic, faculty memberan educator who works at a college or university

Adjectives

(a)academicassociated with academia or an academy“the academic curriculum”, “academic gowns”
(s)academichypothetical or theoretical and not expected to produce an immediate or practical result“an academic discussion”, “an academic question”
(s)academic, donnish, pedanticmarked by a narrow focus on or display of learning especially its trivial aspects