Related Clues:

• Dijon disagreement
• Opposer
• Not even a semipro?
• In opposition to
• Smoking or toxic preceder
• 'Nay!' sayer
• Part of a restaurant host's question
• Plus preceder
• With the enemy, perhaps
• ''Social'' leader
• Not in favor
• Proposal opposer
• Opposing voice
• Prefix with freeze
• Event opening