Related Clues:

• Contrary to fact
• 'That's a lie'
• Informal refusal after putting Frank's name forward
• I couldn't agree less
• 'Negative'
• Definitely not what inactive pupils want on timetable?
• 'Won't work'
• "Yup" opposite
• 'Keep dreaming'
• Work in Northumberland? Emphatically not!
• 'Ain't happenin''
• ''Ain't gonna happen''
• Casual refusal ... and, another way, a hint to this puzzle's four longest answers
• 'That ain't gonna work'
• "Nah, I don't think so"