obtuse

Short definition from Wiktionary

Adjective

1. 1
   Blunt; not sharp, pointed, or acute in form.
2. 2
   Blunt; not sharp, pointed, or acute in form: Blunt, or rounded at the extremity.
3. 3
   Blunt; not sharp, pointed, or acute in form: Larger than one, and smaller than two right angles, or more than 90° and less than 180°.
4. 4
   Blunt; not sharp, pointed, or acute in form: Obtuse-angled, having an obtuse angle.
5. 5
   Intellectually dull or dim-witted.
6. 6
   Of sound, etc.: deadened, muffled, muted.
7. 7
   Indirect or circuitous.

Verb

1. 1
   To dull or reduce an emotion or a physical state.