WordNet records no synonym and no antonym for tory. 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 American who favored the British side during the American Revolution
a member of political party in Great Britain that has been known as the Conservative Party since 1832; was the opposition party to the Whigs
a supporter of traditional political and social institutions against the forces of reform; a political conservative
Synonyms, antonyms and the broader and narrower relations for tory come from Princeton University’s WordNet. Full sources and licences.