Shotgunning, in general, is an aggressive and reckless behavior that is characterized by taking immediate action without any prior planning. Some antonyms of the word "shotgunning" include careful, deliberate, cautious, and thorough. These antonyms can be associated with a more methodical, strategic approach to decision-making and problem-solving. They suggest taking careful consideration of all available options and taking steps to weigh the potential risks and benefits. The opposite of shotgunning involves taking time to analyze the situation before determining the best course of action. It requires patience, cautiousness, and a willingness to be thorough in finding the best solution.