Related Clues:

• Opponent of BBC, some might say?
• Starter like ''contra-''
• It means ''set against''
• Prefix for 'disestablishmentarianism'
• Prefix for "toxin"
• Oppositional opening
• One opposing article returned it
• One has nothing nice to say
• ___-imperialism
• It's a negative prefix
• Prefix for "matter"
• -hero, -lock or -monarchist
• Article Congress backed — or opposed?
• Contrarian prefix
• Prefix for 'perspirant'