The phrase "has at each other" typically refers to a situation where two or more people are engaged in a heated argument or fight. Antonyms for this phrase could include "peaceful," "amicable," "harmonious," or "agreeable," indicating a situation where there is little or no conflict. On the other end of the spectrum, synonyms for "has at each other" could include "brawl," "quarrel," "clash," or "contend," which describe situations where people are actively fighting or arguing with one another. By using an antonym for "has at each other," the emphasis is placed on a positive interaction or peaceful resolution rather than a confrontational one.