Adjective
1. 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"2. 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.Barrie3. 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"