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. [ 1913 Webster ]
2. Not having acute sensibility or perceptions; not alert, especially to the feelings of others; dull; stupid; as, obtuse senses. Milton. [ 1913 Webster ]