obtuse/əbˈtju:s; ?@ -ˈtu:s; əb`tus/ adj(fml derog 文, 贬) slow to understand; stupid 迟钝的; 愚笨的 He's being deliberately obtuse. 他装糊涂. She cannot possibly be so obtuse. 她不可能如此迟钝.
牛津英汉双解词典