Dour

1. adjective

   harshly uninviting or formidable in manner or appearance; ; ; ; - J.M.Barrie

   “a dour, self-sacrificing life”

   Similar: forbidding, grim

2. adjective

   showing a brooding ill humor; ; ; ; ; ; - Bruce Bliven

   “a dark scowl”

   Similar: dark, glowering, glum, moody, morose, saturnine

3. adjective

   stubbornly unyielding; ; ; ; - T.S.Eliot

   “dogged persistence”

   Similar: dogged, persistent, pertinacious, tenacious, unyielding