blunt  
 adjective uk/blʌnt/ us/blʌnt/
  (NOT SHARP)     
 C2 (铅笔、刀等)钝的,不锋利的
A blunt pencil, knife, etc. is not sharp and therefore not able to write, cut, etc. well.
   (RUDE)      
C2 直率的;生硬的;直截了当的
saying what you think without trying to be polite or considering other people's feelings
  I'll be blunt - that last piece of work you did was terrible. 我就直说了——你创作的最后一件作品糟糕透了。 
 blunt         
 verb [ T ] uk/blʌnt/ us/blʌnt/
 使变钝
to make something less sharp
  使(情感)减弱
to make a feeling less strong
  My recent bad experience has blunted my enthusiasm for travel. 最近的倒霉经历已经使我对旅游的热情减弱了不少。 
 blunt      
noun [ C ] uk/blʌnt/ us/blʌnt/
 slang大麻烟卷 
a large cigarette or cigar containing the drug cannabis
 - More examples
 - Kids are coming across blunts, pills, other illegal drugs and booze in their classrooms, lockers, bathrooms and playfields.
 - Smoking blunts is becoming a common practice with teenagers.
 - They would just sit for hours at a time, smoke as many blunts as their system could handle.
 - Officers observed two partially smoked marijuana blunts in the room.
 - "I tell students that joints, cigars and blunts have seven times more tar than cigarettes," he said.