Antonyms for the phrase "set match to" can range from peaceful actions to outright prevention of any possible fire. Examples of antonyms could be "prevent fire," "extinguish fire," "douse flames," "create peace," "promote harmony," "reduce tension," "avoid conflict," or "diminish aggression." These words are often used to describe actions intended to put out or prevent fires safely, or to prevent further conflicts from arising. It is important to recognize that words have a powerful impact, and understanding antonyms is essential for clear communication, preventing misunderstandings, and establishing a safe and harmonious environment.