autopilot UK /ˈɔːtəʊˌpaɪlət/US /ˈɔtoʊˌpaɪlət/noun 2verb 1forms 3 noun2 •A mechanical, electrical, or hydraulic system used to guide a vehicle without assistance from a human being.I set the autopilot to due south, so I could get some rest. •(figurative) A state of mind where one no longer thinks about doing one's actions, but acts mechanically.I've been doing this 12 hours non-stop, and am so hungry and tired that I've stopped thinking: I'm now on autopilot. verb1 •To pilot itself; to drive or travel automatically. formsautopiloted · autopiloting · autopilots