careless disregardant disregardful distracted distrait heedless inadvertent inattentive inconstant incurious indifferent inobservant negligent nonadherent noncompliant nonconforming nonobservant regardless thoughtless uncompliant unconforming unfaithful unheedful unheeding unloyal unmarking unmindful unnoticing unnoting unobserving unperceiving unremarking untrue unwatchful