WordNet records no synonym and no antonym for limb-girdle muscular dystrophy. 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 autosomal recessive form of muscular dystrophy that appears anywhere from late childhood to middle age; characterized by progressive muscular weakness beginning either in the shoulder or pelvic girdle; usually progresses slowly with cardiopulmonary complications in the later stages
Synonyms, antonyms and the broader and narrower relations for limb-girdle muscular dystrophy come from Princeton University’s WordNet. Full sources and licences.