[syn: dense, dim, dull, dumb, obtuse, slow]
The Collaborative International Dictionary of English v.0.48:
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.
[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]
3. Dull; deadened; as, obtuse sound. --Johnson.
[1913 Webster] Obtuse-angled
WordNet (r) 3.0 (2006):
obtuse
adj 1: of an angle; between 90 and 180 degrees [ant: acute]
2: (of a leaf shape) rounded at the apex
3: lacking in insight or discernment; "too obtuse to grasp the
implications of his behavior"; "a purblind oligarchy that
flatly refused to see that history was condemning it to the
dustbin"- Jasper Griffin [syn: obtuse, purblind]
4: slow to learn or understand; lacking intellectual acuity; "so
dense he never understands anything I say to him"; "never met
anyone quite so dim"; "although dull at classical learning,
at mathematics he was uncommonly quick"- Thackeray; "dumb
officials make some really dumb decisions"; "he was either
normally stupid or being deliberately obtuse"; "worked with
the slow students" [syn: dense, dim, dull, dumb,
obtuse, slow]