im·be·cile /ˈɪmbəsiːl $ -səl/ noun [countableC] STUPID/NOT SENSIBLEsomeone who is very stupid or behaves very stupidly 蠢人,笨蛋 SYN idiot He looked at me as if I was a total imbecile. 他看着我,好像我是个大笨蛋。
—imbecilic /ˌɪmbəˈsɪlɪk◂/ adjectiveadj
—imbecility /ˌɪmbəˈsɪləti/ noun [countableC, uncountableU]