The phrase "art one's fate" suggests that a person has control or influence over the outcome of their life, often through their choices, actions, or decisions. Antonyms for this phrase might include words that suggest a lack of control, such as "accept one's fate," "resign oneself to fate," or "yield to fate." Other antonyms might include words that imply a reliance on external forces or factors, such as "surrender to fate," "submit to fate," or "bow to fate." Ultimately, the choice of antonym will depend on the context and intended meaning of the phrase "art one's fate.