1. (noun)aesthetic, esthetic (philosophy) a philosophical theory as to what is beautiful "he despised the esthetic of minimalism"
2. (adj)aesthetic, esthetic, aesthetical, esthetical concerning or characterized by an appreciation of beauty or goodtaste "the aesthetic faculties"; "an aesthetic person"; "aesthetic feeling"; "the illustrations made the book an aesthetic success"
3. (adj)aesthetic, esthetic relating to or dealing with the subject of aesthetics "aesthetic values"