Definition of progressionism in English:

progressionism

noun

  • Any theory involving or accounting for progress; the theory advocated by progressionists; belief in or approval of progress.

Origin

Mid 19th century; earliest use found in Alexander Beresford-Hope (1820–1887), politician and author. From progression + -ism, partly after progressionist.

Pronunciation

progressionism

/prəˈɡrɛʃ(ə)nɪz(ə)m/ /prəˈɡrɛʃənɪz(ə)m/