"Negligent of" is a phrase that describes the act of disregarding or showing a lack of care for something. Some synonyms for this phrase include "careless," "indifferent," "unconcerned," "apathetic," and "dismissive." These words denote a certain lack of attention or interest in the matter at hand, and can be applied to a variety of contexts. For instance, someone who is negligent of their personal hygiene may be described as careless, while someone who is negligent of their financial responsibilities may be characterized as indifferent or careless. Regardless of the situation, when someone is negligent of something, it implies a certain recklessness or disregard for the consequences of their actions.