Nouns

(n)aesthetic, esthetic(philosophy) a philosophical theory as to what is beautiful“he despised the esthetic of minimalism”

Adjectives

(a)aesthetic, estheticrelating to or dealing with the subject of aesthetics“esthetic values”
(a)aesthetic, esthetic, aesthetical, estheticalconcerning or characterized by an appreciation of beauty or good taste“the aesthetic faculties”, “an aesthetic person”, “aesthetic feeling”, “the illustrations made the book an aesthetic success”
(s)aesthetic, esthetic, artisticaesthetically pleasing“an artistic flower arrangement”