Related Clues:

• Slangy dissent
• Negative slang word
• Casual denial
• ''I don't think so''
• Terse refusal
• "Not gonna happen"
• "Yeah" antonym
• 'Fat chance'
• "I don't think so"
• Curt turndown
• Rural refusal
• "Nope"
• Rube's refusal
• 'Don't think so!'
• Opposite of 15-Across