To dream that you are confronted by an adversary, signifies that you will defend any attacks against your interest.
To dream that you overcome an adversary, denotes that you will escape the effects of some serious disaster.
If you dream of making your adversary your friend, you will have an opportunity for business advancement that you should embrace.
To dream that you meet or engage with an adversary, denotes that you will promptly defend any attacks on your interest. Sickness may also threaten you after this dream. If you overcome an adversary, you will escape the effect of some serious disaster. See Enemies