Related Clues:

• Political opponent in Byzantium
• Prefix with "rust" or "trust"
• ___-vaxxers
• Prefix for the opposition
• Against a new note?
• Against Parisian that abandons collector’s item
• Opposer's prefix
• One on the negative side
• Non pro
• Opposed to substantial houses
• Dissenter's prefix
• (Person who is) not in favour
• Policy opponent
• Part of an auto's ABS
• "Social" prefix