Wiktionary
n. An advocate of progressivism.
Usage examples of "progressivist".
The problems I have so far permitted myself to identify have been essentially internal ones, those of false clues or inadequate experiments - and even most of these became sanitized away in the ultimately progressivist account of the last two chapters.
Both of their presidential administrations were marked by the passage of important progressivist antitrust legislation, from the regulation of the railroads under Roosevelt to broad regulation of business and finance under Wilson.
While still in the provinces, he had heard of Andrei Semyonovich, his former ward, as one of the foremost young progressivists, who was even playing an important role in certain curious and fabled circles.
Petersburg, certain progressivists, nihilists, exposers, and so on and so forth, but, like many others, he exaggerated and distorted the meaning and significance of these names to the point of absurdity.
Even if he were convinced that all progressivists were the same sort of little fools, it would still not have allayed his uneasiness.