stu·pid 
/ˈstu:pəd, Brit ˈstju:pəd/ adjective
stu·pid·er; stu·pid·est /ˈstu:pəd, Brit ˈstju:pəd/ adjective [also more stupid; most stupid] 1 : not intelligent : having or showing a lack of ability to learn and understand things
▪ She angrily described her boss as a stupid old man. ▪ He had a stupid expression on his face. ▪ I'm not stupid enough to fall for that trick. 2 : not sensible or logical : foolish
▪ Why are you being so stupid? ▪ It was stupid of me to try to hide this from you. ▪ We were stupid to wait so long before we made a decision. ▪ I did some pretty stupid things when I was young. ▪ a stupid movie ▪ a silly, stupid song ▪ a stupid decision/mistake 3 : not able to think normally because you are drunk, tired, etc.
▪ Two glasses of wine are enough to make me stupid. ▪ I was stupid with fatigue. 4 informal — used to refer to something in an angry or irritated way ▪ The stupid car won't start. ▪ Where did I put those stupid keys?
▪ She angrily described her boss as a stupid old man. ▪ He had a stupid expression on his face. ▪ I'm not stupid enough to fall for that trick.
▪ Why are you being so stupid? ▪ It was stupid of me to try to hide this from you. ▪ We were stupid to wait so long before we made a decision. ▪ I did some pretty stupid things when I was young. ▪ a stupid movie ▪ a silly, stupid song ▪ a stupid decision/mistake
▪ Two glasses of wine are enough to make me stupid. ▪ I was stupid with fatigue.
— stu·pid·ly adverb
▪ He's been acting stupidly. ▪ I stupidly thought it was a good idea. ▪ She was staring stupidly out the window.
▪ He's been acting stupidly. ▪ I stupidly thought it was a good idea. ▪ She was staring stupidly out the window.
