adj 1  :  incapable or bereft of feeling or sensation: as  a  :  UNCONSCIOUS <knocked by a sudden blow>   b  :  lacking sensory perception or ability to react < to pain>   c  :  lacking emotional response  :  APATHETIC  2  :  not perceived by the senses < perspiration>  in*sen*si*bil*i*ty n pl  -ties  
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.