WordNet records no synonym and no antonym for futurism. It is the only member of each of its synsets, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
an artistic movement in Italy around 1910 that tried to express the energy and values of the machine age
the position that the meaning of life should be sought in the future
Synonyms, antonyms and the broader and narrower relations for futurism come from Princeton University’s WordNet. Full sources and licences.