obtuse (
http://definr.com/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:
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,
slow]