Pretentiously cultured can be described by two words: ARTSY and ARTY. ARTSY is an adjective used to describe someone who is interested in or involved in the arts, such as painting, music, or theater. It is often used to describe someone who is creative and fashionable. ARTY is a similar term, but it is more often used to describe someone who is overly concerned with their appearance and culture. Both terms are often used to describe someone who is pretentious and puts on a show of being cultured.