obtusePronunciation: /əbˈtjuːs/Translate obtuse | into French | into German | into Italian | into Spanish Definition of obtuse adjective 1annoyingly insensitive or slow to understand:he wondered if the doctor was being deliberately obtuse difficult to understand, especially deliberately so:some of the lyrics are a bit obtuse 2(of an angle) more than 90° and less than 180°: an obtuse angle of 150° 3not sharp-pointed or sharp-edged; blunt: it had strange obtuse teethDerivatives obtusely adverb obtuseness noun obtusity noun Origin: late Middle English (in sense 3): from Latin obtusus, past participle of obtundere 'beat against' (see obtund)obtuse in other Oxford dictionaries Definition of obtuse in the US English dictionary