adversarial /ad-vər-sāˈri-əl/

1. Combative
2. Antagonistic
3. Hostile, esp on party lines in politics
4. Involving opposing parties or interests (law)

• boxiness
• boxinesses
• boxing
• Boxing Day
• boxing glove
• boxing gloves
• boxings
• box-iron
• box-irons
• box jellyfish
• box jellyfishes
• box junction
• box junctions
• boxkeeper
• boxkeepers
• box kite
• box kites
• box-lobbies
• box-lobby
• box number
• box numbers
• box office
• box-office
• box offices
• box-pleat