medical has 6 distinct synonyms spread across 2 of its 4 senses. 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. Its one recorded opposite is surgical.
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.
requiring or amenable to treatment by medicine especially as opposed to surgery
“medical treatment”
of or belonging to Aesculapius or the healing art
a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person
1 of the 4 recorded senses carries no synonym, antonym or related term, so it is not shown above. Every sense, with its definition and examples, is on the full entry for medical.
Synonyms, antonyms and the broader and narrower relations for medical come from Princeton University’s WordNet. Full sources and licences.