Related Clues:

• Skeptical words
• Slangy negative
• Skeptic's scoff
• 'Ixnay!'
• 'Prove it!'
• ''Nothing doing''
• ''Yeah, right!''
• Casual dissent
• ''Yeah, sure!''
• ''You wish!''
• Skeptic's remark
• "Uh-uh"
• ''A likely story!''
• Kin of nah
• Skeptical response