archliberal

[ ahrch-lib-er-uh l, ‐lib-ruh l ]
/ ˈɑrtʃˈlɪb ər əl, ‐ˈlɪb rəl /

adjective

extremely liberal, especially in political thinking.

noun

a person who holds extremely liberal views.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019