Abhorring someone or being abhorred in your dream is a rather simply to interpret situation because it depicts a real event most of the times. For instance, if you dream that you are abhorred by someone, this means that you suspect people in your waking life to abhor you. On the other hand, if you dream that you abhor someone, it means that there is a certain individual in your waking life you dislike or consider to be untrustworthy.
Dreaming of someone you abhor may also forewarn of possible danger or difficult situations you will have to deal with soon in your life.