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; dull; stupid; as, obtuse senses. --Milton.

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

Source: Webster's Revised Unabridged Dictionary (1913)