annoyingly insensitive or slow to understand 迟钝的,愚蠢的 he wondered if the doctor was being deliberately obtuse. 他怀疑医生是不是在故作迟钝。 ■difficult to understand 难以理解的,晦涩的 some of the lyrics are a bit obtuse. 某些抒情诗有点晦涩。
(of an angle) more than 90° and less than 180° (角)钝的 ■not sharp-pointed or sharp-edged; blunt 钝的,不锋利的