The antonym for the word "art reasonable" can be interpreted in different ways. The word "art" can be seen as a synonym for creativity, while "reasonable" refers to the ability to make sound judgments. Therefore, the antonyms for "art reasonable" can be words like unimaginative, illogical, irrational, or absurd. They signify a lack of creativity or poor use of sound judgment. These antonyms can be used in the context of various fields, such as art, literature, or even politics. It is important to understand antonyms to enhance one's vocabulary and learn to use appropriate words in various situations.