Obtuse \Ob*tuse"\ a. [Compar. {Obtuser}; superl. {Obtusest}.]
[L. obtusus, p. p. of obtundere to blunt: cf. F. obtus. See
{Obtund}.]
1. Not pointed or acute; blunt; -- applied esp. to angles
greater than a right angle, or containing more than ninety
degrees.

2. Not having acute sensibility or perceptions; not alert,
especially to the feelings of others; dull; stupid; as,
obtuse senses. --Milton.

3. Dull; deadened; as, obtuse sound. --Johnson.