definition of
senseless

[1] #1 senseless s. [insensible] unresponsive to stimulation; "he lay insensible where he had fallen"; "drugged and senseless". wn

[2] #2 senseless s. [otiose, pointless, purposeless, superfluous, wasted] serving no useful purpose; having no excuse for being; "otiose lines in a play"; "advice is wasted words"; "a pointless remark"; "a life essentially purposeless"; "senseless violence". wn

[3] #3 senseless s. [nitwitted, soft-witted, witless] (of especially persons) lacking sense or understanding or judgment. wn