blunt
I
 /ˈblʌnt/  adj  , blunt·er, -est [also more ~; most ~]
  1 : having a thick edge or point : not sharp
   scissors with blunt [=rounded] ends
   He was hit over the head with a blunt instrument. [=an object without sharp edges or points]
  ◇ Blunt trauma is a serious injury caused by being hit by something that does not have sharp edges.
   She suffered blunt trauma to the head.
  2 : saying or expressing something in a very direct way that may upset some people
   blunt language
   a blunt statement
   To be perfectly blunt, I find her annoying.
   He was blunt about needing more privacy.
  blunt·ly  adv  
   She bluntly refused their offer.
   To put it bluntly, I think he's out of his mind.
  blunt·ness  noun   [  noncount  ]
   He replied with characteristic bluntness.
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II
  verb  , blunts, blunt·ed, blunt·ing [  + obj  ]
  : to make (something) less sharp
   a weapon blunted by use
  — often used figuratively
   The stress and fatigue had blunted [=weakened] his reflexes.
   They tried to blunt [=soften] their criticism by praising her energy and enthusiasm.