What is the closest synonym for "partisan" in the context of supporters?

The term "partisan" refers to a strong supporter or advocate of a particular cause, group, or political party. In this context, it conveys a sense of loyalty and active engagement with a specific agenda or stance. Therefore, the synonym "supporter" accurately captures this meaning, as it indicates someone who endorses or champions a particular viewpoint.

The other words do not convey the same level of active allegiance. "Ignorant" implies a lack of knowledge, "uninterested" suggests indifference or apathy, and "festive" relates to a cheerful or celebratory atmosphere rather than support for a cause. Thus, "supporter" stands out as the closest synonym to "partisan."