[adj] unresponsive to stimulation; "he lay insensible where he had fallen"; "drugged and senseless"
[adj] (of especially persons) lacking sense or understanding or judgment
[adj] lacking import; "a pointless remark"; "a life essentially purposeless"; "senseless violence"
[adj] not marked by the use of reason; "mindless violence"; "reasonless hostility"; "a senseless act"