Inobservant

a.

1.

Not observant; regardless; heedless.

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