obtuse
verb
- to blunt, dull; to render obtuse
adjective
- not pointed or acute : blunt
- of an angle : exceeding 90 degrees but less than 180 degrees
- having an obtuse angle
- of a leaf : rounded at the free end
- lacking sharpness or quickness of sensibility or intellect : insensitive, stupid
- difficult to comprehend : not clear or precise in thought or expression