Antonyms for the phrase "comporting oneself" include misbehaving, acting unruly, flouting rules, disregarding decorum, offending conventions, and behaving inappropriately. To comport oneself means to act in a manner that is appropriate for the situation or environment, usually with a sense of dignity, poise, and self-control. Antonyms for this phrase imply a lack of self-restraint, disrespect for authority, and a tendency to disrupt social norms. It is essential to understand the importance of comporting oneself in certain situations to avoid negative consequences such as professional backlash or social isolation. Instead, consider acting respectfully, following rules, and refraining from disruptive behavior to demonstrate maturity and self-control.