WordNet records no synonym and no antonym for french academy. It is the only member of its synset, 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 honorary group of French writers and thinkers supported by the French government
“the French Academy sets standards for the use of the French language”
Synonyms, antonyms and the broader and narrower relations for french academy come from Princeton University’s WordNet. Full sources and licences.