The Bedside Dream Dictionary

by Silvana Amar
This pertains to your finances and as with adversary is a good omen if you undergo the adversity; however, an exception to this generality is if the adversity was in a love affair, in which case you must guard against idle gossip.

To overcome one indicates a victory over disappointments.

To be overcome indicates you need to take a good look at those around you. Someone could be a troublemaker behind your back. Also, this could be a dream of contrary.

If your dream involved an opponent or a business, social, or professional rival, you may have some momentary difficulties, but you can rise above them with a little serious effort.

The Big Dictionary of Dreams

by Martha Clarke
Confronting an adversary reflects fear and, at the same time, the decision to address your personal issues or limitations.

It is probably representative of an aspect you dislike about yourself and that has created an inner conflict.

It is important to be attentive to the way the conflict resolves because it will be indicative of how you feel in real life.

It is said that beating an opponent in dreams brings misfortune because it means negative friendships will end up hurting you in real life.

Ten Thousand Dream Interpretation

by Gustavus Hindman Miller
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.