adversary
/ˈædvɜːsri/Definitions
1. noun
A person or organization that opposes or competes with another; an opponent or rival.
“The company’s main adversary in the market was a large corporation.”
2. noun
A person who is seen as a threat or a danger, especially in a spiritual or supernatural sense.
“In the story, the wizard was the adversary of the young hero.”
3. noun
A person or thing that opposes or resists something, especially a plan or idea.
“The new policy was met with resistance from the public, who saw it as an adversary to individual freedoms.”