1. Bitter or scornful
   "the face was saturnine and swarthy, and the sensual lips...twisted with disdain" 
2. Showing a brooding ill humour
   "a saturnine, almost misanthropic young genius"
   - dark, dour, glowering, glum, moody, morose, sour, sullen

See also: ill-natured, sarcastic

• contorted
• contortion
• contortionist
• contour
• contour feather
• contour language
• contour line
• contour map
• contour sheet
• contra danse
• contra-
• contraband
• contrabandist
• contrabass
• contrabassoon
• contraception
• contraceptive
• contraceptive device
• contraceptive diaphragm
• contraceptive method
• contraceptive pill
• contraclockwise
• contract
• contract bridge
• contract in