The phrase "in tizzy" implies a state of nervousness, anxiety, or agitation. Its antonyms are words that express the opposite meaning, such as calm, relaxed, composed, tranquil, serene, and peaceful. When someone is not in a tizzy, they are able to remain calm in stressful situations, think clearly, and make rational decisions. Being calm and collected can help you manage stress, achieve greater productivity, and maintain overall well-being. Therefore, it is important to practice relaxation techniques and mindfulness exercises to stay grounded and centered, even when things feel chaotic.