aestheticism

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/iːsˈθɛtɪˌsɪzəm/

US:USA pronunciation: respellingUSA pronunciation: respelling(es thet′ə siz′əm or, esp. Brit., ēs-)

aes•thet•i•cism (es thet′ə siz′əm or, esp. Brit., ēs-),USA pronunciation n.

Philosophythe acceptance of artistic beauty and taste as a fundamental standard, ethical and other standards being secondary.
Philosophyan exaggerated devotion to art, music, or poetry, with indifference to practical matters.
Fine Arta late Victorian movement in British and American art characterized by a dedicatedly eclectic search for beauty and by an interest in old English, Japanese, and classical art.

Also, estheticism.

Collins Concise English Dictionary © HarperCollins Publishers::

aestheticism, sometimes US estheticism /iːsˈθɛtɪˌsɪzəm; ɪs-/ n

the doctrine that aesthetic principles are of supreme importance and that works of art should be judged accordingly
sensitivity to beauty, esp in art, music, literature, etc

'aestheticism' also found in these entries (note: many are not synonyms or translations):

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