The phrase "art the warpath" typically implies a state of aggression, conflict, or hostility. Antonyms for "art the warpath" would be words or phrases that signify peace, calm, or harmony. Some appropriate antonyms might include "seeking peace," "pursuing diplomacy," "embracing compromise," "de-escalating the situation," "finding common ground," or "working towards reconciliation." By using these antonyms, we can shift the focus of our language towards promoting solutions rather than exacerbating conflicts, and help to create a more harmonious, understanding society.