De-fusing, a word that denotes the process of reducing or disarming a potentially dangerous situation or conflict, has several antonyms. The opposite of de-fusing could be aggravating, intensifying, escalating, or fueling the situation, which could lead to potentially disastrous outcomes. While de-fusing aims to bring down the temperature of a tense situation, its antonyms might provoke or incite hostility and anger. De-fusing may also involve empathizing with the other party and finding common ground, while its antonyms might involve ignoring or dismissing the other person's viewpoint. Thus, it's essential to choose words carefully in sensitive situations, as the wrong words can lead to the opposite outcome than intended.