Wordnet 3.0
NOUN (1)
1.
the political orientation of those who favor progress toward better conditions in government and society;
WordNet (r) 3.0 (2006):
progressivism
n 1: the political orientation of those who favor progress
toward better conditions in government and society
Moby Thesaurus II by Grady Ward, 1.0:
19 Moby Thesaurus words for "progressivism":
Fabianism, conversion, extremism, gradualism, left, left wing,
leftism, liberalism, meliorism, radical reform, radicalism, reform,
reformation, reformism, regeneration, revisionism, revolution,
transformation, utopianism