bluff - definition and synonyms

adjective British 

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/blʌf/
  1. someone who is bluff has a very direct manner that might offend some people, but is friendly and happy and does not intend to upset anyone
     Synonyms and related words
    1. a.
      used about the behaviour of such a person

      His bluff manner of speaking put off some people.

       Synonyms and related words