Adjective
1. incapable of physical sensation;
"insensible to pain""insensible earth"2. (followed by `to' or `by') unaware of or indifferent to;
"insensible to the suffering around him"3. barely able to be perceived;
"the transition was almost indiscernible""an almost insensible change"4. unresponsive to stimulation;
"he lay insensible where he had fallen""drugged and senseless"