gracious has 3 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 ungracious.
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.
characterized by charm, good taste, and generosity of spirit
“gracious even to unexpected visitors”
characterized by kindness and warm courtesy especially of a king to his subjects
“our benignant king”
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 gracious.
Synonyms, antonyms and the broader and narrower relations for gracious come from Princeton University’s WordNet. Full sources and licences.