@alyx Technically yes but I barely ever see it. I don't know why it seems so uncommon. I would assume it's because leftism is a specific ideology separate from "left wing politics" in general, and "centrism" is often used as a catch-all term for moderate ideologies or neutrality, whereas "rightism" is rarely, if ever, used as a catch-all term for right wing ideologies, and is not a distinct ideology on its own.