The antonyms for the word "art temperate" can vary based on the context of its usage. If it is used to describe the behavior of someone who is calm and balanced, the antonyms could be irrational, impulsive, or erratic. If it is used to describe the climate or weather, the antonyms could be extreme, harsh, or severe. In the context of art or aesthetics, the antonyms could be vulgar, tasteless, or kitschy. Overall, the antonyms for "art temperate" depend on the specific domain in which the term is used and the opposite meaning that applies to that domain.