rightist

noun

1. One who believes in the politics or policies of the political right.

   “To summarize: on the average, rightists are made more anxious by ambiguity and have a stronger need for closure, dislike novelty, are more comforted by structure and hierarchy, more readily perceive circumstances as threatening, and are more parochial in their empathy.”

2. (in-compounds)One who supports the rights of a specified group.

   “an animal rightist”

adj

1. Of or pertaining to the political right.

   “Hearsay even got "freeped." "Freepers," followers of a rightist Web site called Free Republic, orchestrated a "Freeper Call to Action."”

   “Whether a Hidalgo candidacy can galvanize the left and throw open an election in which Emmanuel Macron, the centrist president, and Marine Le Pen, the rightist candidate, remain favorites is unclear.”