When it comes to finding synonyms for "hissie fit," there are plenty of options to choose from. Some of the most common alternatives include "temper tantrum," "meltdown," "fit of rage," and "outburst." Other word choices might include "tantrum," "conniption," "freak-out," or "explosion." All of these alternatives refer to a sudden, intense display of anger or frustration that can be difficult to control. No matter which synonym you choose, the term "hissie fit" is a colloquialism that evokes strong emotions and vivid imagery. Whether you're dealing with a child throwing a tantrum or an adult having a meltdown, there are plenty of ways to describe this outburst of emotions.