Definition of antifascist in US English:

antifascist

adjective

  • Opposed to fascism or to extreme right-wing authoritarianism.

    ‘thousands of antifascist protesters blocked a neo-Nazi march in the German city’
    ‘by the spring of 1937, complex rivalries between political factions were tearing the antifascist forces apart’

noun

  • A person who is opposed to fascism or to extreme right-wing authoritarianism.

    ‘more than 150 antifascists confronted about 25 white supremacists in front of the state capitol’

Pronunciation