"Gung Ho" is a term used to describe someone who is enthusiastic and eager to take on challenges. However, there are times when a more reserved or cautious approach is required. Antonyms for "gung ho" include words like hesitant, unsure, hesitant, reluctant and apprehensive. These words suggest a more measured approach to problem-solving or decision-making, where one takes the time to gather all relevant facts before committing to a course of action. While being gung ho can be an admirable quality, it's important to be able to balance enthusiasm with careful consideration, especially in situations where the stakes are high.