Adjective: saturnine 'sa-tu(r),nIn
- Bitter or scornful
"the face was saturnine and swarthy, and the sensual lips … twisted with disdain"
- Showing a brooding ill humour
"a saturnine, almost misanthropic young genius";
- dark, dour, glowering, glum, moody, morose, sour, sullen
See also: ill-natured, sarcastic, sarky [Brit, informal]
Encyclopedia: Saturnine