stupidity /stʃʊˈpɪdɪti,stʃuːˈpɪdɪti,stjʊˈpɪdɪti,stjuːˈpɪdɪti/ noun: stupidity; plural noun: stupidities . behaviour that shows a lack of good sense or judgement. . “I can’t believe my own stupidity” Mans most common sin must be stupidity and it embodies itself in many forms. To hate one without reason, to love one without restrictions, to…