Related Clues:

• ''Yea, right!''
• 'Uh-huh, sure it is'
• Doubter's comment
• Sarcastic ''Sure!''
• "Doubtful"
• ''Ha!''
• 'That doesn't surprise me!'
• 'Uh-huh, yeah, sure'
• Skeptic's rejoinder
• Expression of doubt
• Exclamation of disbelief
• Scoffing comment
• ''That's not gonna happen''
• 'Yeah, sure ...'
• "That's unlikely"