The Big Dictionary of Dreams

by Martha Clarke
Being slandered in dreams alerts that, in real life, people very close to you might betray you. On the other hand, to slander others evidence a thoughtless action that will bring you serious trouble.

Ten Thousand Dream Interpretation

by Gustavus Hindman Miller
To dream that you are slandered, is a sign of your untruthful dealings with ignorance.

If you slander any one, you will feel the loss of friends through selfishness.

Dream Dictionary Unlimited

by Margaret Hamilton
Revealed in order to lessen or avert the defamation