anesthetic /ˌænəsˈθɛtɪk/adjective 2noun 1forms 3 adjective2 •Causing anesthesia; reducing pain sensitivity. •Insensate: unable to feel, or unconscious.Though physically capable of attaining sex rewards, he is anesthetic; though capable of aggression, he is meek; though capable of affection, he is cold and unresponsive. — 1984 noun1 •A substance administered to reduce the perception of pain or to induce numbness for surgery and may render the recipient unconscious.After a local anesthetic is applied to the eye, do not rub or wipe the eye until the anesthetic has worn off and feeling in the eye returns. — 1994 formsanesthetics · more anesthetic · most anesthetic