Both Uses

progressive
in
A Thousand Splendid Suns
(Edited)

And everyone in Afghanistan would be happy too, she said, once the antiprogressives, the backward bandits, were defeated.
p. 112.1 *

antiprogressives = opposing people who favor liberal political change or ideas

standard prefix: The prefix "anti-" in antiprogressives means against or opposite. This is the same pattern you see in words like antiviral, antiaircraft, and antisocial.
By "out there," he didn't mean Kabul, which had always been relatively liberal and progressive.
p. 135.8 *

progressive = favoring liberal political change or ideas

Definitions:

(1) (progressive as in: progressive decline)
gradually advancing or becoming more severe
(2) (progressive as in: progressive ideas)
supporting new ideas and reforms, especially in politics, and less concerned about unintended consequences of changing evolved institutions
(3) (meaning too rare to warrant focus)
Progressive tax refers to a system of taxation in which the percent of income taxed increases with higher income. The terms, progressive education or progressive school are sometimes used to refer to more modern educational techniques such as stressing experience and self-expression over rote learning. In 1924, there was a political party in the United States called the Progressive Party. For other more specialized senses (including meanings related to eyeglass lenses, music, and grammar), see a comprehensive dictionary or Wikipedia.