christian has no recorded synonym. 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 unchristian.
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.
following the teachings or manifesting the qualities or spirit of Jesus Christ
a religious person who believes Jesus is the Christ and who is a member of a Christian denomination
1 of the 3 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 christian.
Synonyms, antonyms and the broader and narrower relations for christian come from Princeton University’s WordNet. Full sources and licences.