When we talk about antonyms for the word "outburst," we refer to words that have opposite meanings. The word "outburst" signifies an explosion of emotions or energy, which can be overwhelming or intense. The antonyms for outburst can be words like calmness, peace, quietness, or tranquility. When you experience an outburst, it is typically an excessive display of emotions that can often lead to conflict or tension. In opposition to this, the antonyms convey a sense of serenity, balance, composure, and equanimity - all of which indicate a state of being in control of one's emotions. So, the antonyms for outburst offer a counterbalance to the overabundance of feelings or energy.