dour

Adjective

• showing a brooding ill humor
  • a dark scowl
    
  • the proverbially dour New England Puritan
    
  • a glum, hopeless shrug
    
  • he sat in moody silence
    
  • a morose and unsociable manner
    
  • a saturnine, almost misanthropic young genius- Bruce Bliven
    
  • a sour temper
    
  • a sullen crowd
    

• harshly uninviting or formidable in manner or appearance
  • a dour, self-sacrificing life
    
  • a forbidding scowl
    
  • a grim man loving duty more than humanity
    
  • undoubtedly the grimmest part of him was his iron claw- J.M.Barrie
    

• stubbornly unyielding
  • dogged persistence
    
  • dour determination
    
  • the most vocal and pertinacious of all the critics
    
  • a mind not gifted to discover truth but tenacious to hold it- T.S.Eliot
    
  • men tenacious of opinion
    

Related words

• Synonyms: 
  dark , glowering , glum , moody , morose , saturnine , sour , sullen , forbidding , grim , dogged , persistent , pertinacious , tenacious , unyielding