Antonyms for the word "art arbitrary" include "unbiased," "objective," "fair," and "reasonable." These words all connote a sense of balance and impartiality that is absent from the idea of something being "arbitrary." The opposite of arbitrary is to have rules and guidelines that are set out in advance, rather than randomly chosen. An arbitrary decision is one that lacks justification, and is instead made based on personal preferences or whim. In contrast, an objective approach requires that every decision be based on clear and consistent criteria, and that personal biases be kept to a minimum. By embracing the antonyms of "art arbitrary," people can strive to make more rational and systematic choices in their lives.