negligent

Universal Words adjective 1 (formal or law) failing to give sb/sth enough care or attention, especially when this has serious results: The school had been negligent in not informing the child's parents about the incident. * grossly negligent 2 (literary) (of a person or their manner) relaxed; not formal or awkward SYNNONCHALANT: He waved his hand in a negligent gesture. * her negligent grace negligently adverb: The defendant drove negligently and hit a lamp post. * She was leaning negligently against the wall.