opponent

1 ENTRIES FOUND:
opponent /əˈpoʊnənt/ noun
plural opponents
opponent
/əˈpoʊnənt/
noun
plural opponents
Britannica Dictionary definition of OPPONENT
[count]
1 
: a person, team, group, etc., that is competing against another in a contest
2 
: a person, group, etc., that is against something (such as an action, law, or system) : someone or something that does not want something to exist, be done, etc. — often + of
— opposite proponent