adjective (obtuser; -est) see: ob-
Date: 15th century
1. not pointed or acute ; blunt , b. exceeding 90 degrees but less than 180 degrees, having an obtuse 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 obtusely adverb obtuseness noun