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

• stereotypic
• stereotypical
• stereotypies
• stereotyping
• stereotypings
• stereotypy
• steres
• steric
• sterigma
• sterigmata
• sterilant
• sterilants
• sterile
• sterilisation
• sterilisations
• sterilise
• sterilised
• steriliser
• sterilisers
• sterilises
• sterilising
• sterilities
• sterility
• sterilization
• sterilizations