Objector and Opponent

Objector noun - A person who dissents from some established policy.

Opponent and objector are semantically related In some cases you can use "Opponent" instead a noun "Objector".

Nearby Words: object, objective, objection, objected, objecting

Opponent noun - One that takes a position opposite another in a competition or conflict.

Objector and opponent are semantically related in opposer topic. You can use "Objector" instead a noun "Opponent", if it concerns topics such as rival.