WordNet records no synonym and no antonym for snowshoe. 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.
a device to help you walk on deep snow; a lightweight frame shaped like a racquet is strengthened with cross pieces and contains a network of thongs; one is worn on each foot
travel on snowshoes
“After a heavy snowfall, we have to snowshoe to the grocery store”
Synonyms, antonyms and the broader and narrower relations for snowshoe come from Princeton University’s WordNet. Full sources and licences.