edward ii has 1 distinct synonym spread across 1 of its 1 sense. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
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.
King of England from 1307 to 1327 and son of Edward I; was defeated at Bannockburn by the Scots led by Robert the Bruce; was deposed and died in prison (1284-1327)
Synonyms, antonyms and the broader and narrower relations for edward ii come from Princeton University’s WordNet. Full sources and licences.