► 形容動詞非常識  [(2)ひじょうしき]    
meaning:  common sense  rank: 2☆ 
真夜中に
人に
電話するなんてなんて非常識な
奴だ ⇨ He has no common sense that he calls someone during midnight
More examples:- こんな夜中に電話をかけてくるなんて非常識だ ⇨ It is a lack of common sense to call someone this late in the night