Definition of progressionist in English:

progressionist

noun

historical
  • 1Biology
    A supporter of the theory that all life forms gradually evolve to a higher form.

  • 2An advocate of or believer in political or social progress.

    innovator, reformer, reformist, liberal, libertarian, progressivist, leftist, left-winger
    View synonyms

adjective

Biology
historical
  • Supporting or relating to the theory that all life forms evolve to a higher form.

    ‘progressionist evolutionists’
    • ‘Darwin opted for a progressionist interpretation of the record.’
    • ‘We then see how thinking in terms of final causes was revived in the works of Immanuel Kant and William Paley, but now found itself faced with the problem of accommodating progressionist and evolutionist thinking.’
    • ‘Merriam's views of evolution were progressionist, much more so than the views of most evolutionary biologists today.’

Pronunciation

progressionist

/prəˈɡrɛʃ(ə)nɪst/