anesthetic
1. an.es.thet.ic \.an-*s-'thet-ik\ \-i-k(*-)le-\ aj 1: of, relating to, or capable of producing anesthesia 2: lacking perceptive sensitiveness - an.es.thet.i.cal.ly av 2. anesthetic n 1: a substance that produces anesthesia 2: something that brings relief : PALLIATIVE