A literary and artistic movement emphasizing beauty over social or moral themes. Often used in discussions of late 19th-century European art and literature, but also applied to Japanese works influenced by the same ideals.
Aestheticism was an artistic movement that flourished in late 19th-century Europe.
His novels show a strong influence of aestheticism.
耽美 is a shorter noun/adjective meaning 'aesthetic' or 'devotion to beauty', often used in compounds. 耽美主義 specifically refers to the philosophical or artistic movement of aestheticism.
唯美主義 is a near-synonym also meaning 'aestheticism', but 耽美主義 is more common in modern usage.
Compound of 耽美 (tanbi, 'aesthetic, devotion to beauty') + 主義 (shugi, '-ism'). The term was coined in Japan to translate the Western concept of aestheticism.