The word "dustup" refers to a quarrel or dispute, particularly a minor one. The antonyms for this word include agreement, peace, harmony, and concord. If two people reach a consensus or come to an understanding, it is unlikely that a dustup will ensue. Similarly, if the parties involved show tolerance, patience, or forgiveness towards each other, then there would be no need for a dustup. Acts of kindness, compromise, and empathy can all aid in preventing a dustup. In essence, antonyms for "dustup" are all about fostering a sense of unity, understanding, and peaceful coexistence.