Prepotent describes influence that does not merely participate but predominates. It names a force, trait, or authority that carries greater weight than competing alternatives and therefore tends to shape outcomes.

It describes something that has dominant or overriding influence or power. In genetics, it refers to a trait that consistently manifests itself in an individual's offspring, often overpowering other traits. In broader contexts, it can signify overwhelming strenght, authority, or influence in various situations.

In broader use, the word can describe any decisive influence that consistently prevails in the field of action.