Related Clues:

• Mean as a snake
• Hard to get along with
• Like a mule, stereotypically
• Truculent
• Like a cantankerous old coot
• Mean and nasty
• Not at all good-humored
• Like a sourpuss
• Inclined to anger
• Like Scrooge
• Sullenly ill-humored
• Having a mean streak
• Headstrong
• In a crabby mood
• Grumpily bad-tempered