OBTUSE

adjective (~r; -est) see: ob- Date: 15th century 1. not pointed or acute ; blunt , b. exceeding 90 degrees but less than 180 degrees, having an ~ angle , rounded at the free end, 2. lacking sharpness or quickness of sensibility or intellect ; insensitive , stupid , difficult to comprehend ; not clear or precise in thought or expression, see: dull ~ly adverb ~ness noun