The antonyms of the term "simmers down" include intensify, escalate, agitate, rile up, provoke, stimulate, and trig. The term refers to the act of decreasing or calming down the intensity of a situation or emotion. On the other hand, its antonyms indicate the exact opposite, signifying the elevation, enhancement, or promotion of an already existing feeling or condition. Employing the antonyms of "simmers down" could lead to an undesirable outcome, as it might result in heated arguments, conflicts, or misunderstandings. Hence, it is essential to handle situations and emotions with composure, maturity, and logical thinking to avoid these undesirable consequences.