obtuse Meaning, Definition & Usage
- 
       adjective of an angle; between 90 and 180 degrees
        
      
 
- 
       adjective satellite (of a leaf shape) rounded at the apex
        
      
 
- 
       adjective satellite lacking in insight or discernment
       
       
 purblind.
 - 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
 
- 
       adjective satellite slow to learn or understand; lacking intellectual acuity
       
       
 dim; slow; dense; dumb; dull.
 - 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
 
WordNet
Ob*tuse" adjective
Etymology
L.Wordforms
Definitions
-  Not pointed or acute; blunt; -- applied esp. to angles greater than a right angle, or containing more than ninety degrees. 
-  Not having acute sensibility or perceptions; dull; stupid; Milton.as, .obtuse senses
-  Dull; deadened; Johnson.as, .obtuse sound