opponent /ə-pōˈnənt/

1. The person opposed to one in a contest, struggle, battle, etc
2. Someone who opposes a course of action, belief, etc
3. An opponent muscle (anatomy)

1. Opposing
2. Antagonistic (with to; formerly with with)
3. Placed opposite or in front
4. (of a muscle) opposing one part (eg a digit) to another (anatomy)

oppoˈnency noun

• asperity
• aspermia
• aspermias
• asperous
• aspers
• asperse
• aspersed
• asperses
• aspersing
• aspersion
• aspersions
• aspersive
• aspersoir
• aspersoirs
• aspersoria
• aspersories
• aspersorium
• aspersory
• as per usual
• asphalt
• asphalted
• asphalter
• asphalters
• asphaltic
• asphalting