Dictionary (a.) Not observant; regardless; heedless.Thesaurus careless disregardant disregardful distracted distrait heedless inadvertent inattentive inconstant incurious indifferent negligent nonadherent noncompliant nonconforming nonobservant regardless thoughtless uncompliant unconforming unfaithful unheedful unheeding unloyal unmarking unmindful unnoticing unnoting unobservant unobserving unperceiving unremarking untrue unwatchful |