sandarac has 5 distinct synonyms spread across 3 of its 3 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. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
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.
durable fragrant wood; used in building (as in the roof of the cathedral at Cordova, Spain)
a brittle and faintly aromatic translucent resin used in varnishes
large coniferous evergreen tree of North Africa and Spain having flattened branches and scalelike leaves yielding a hard fragrant wood; bark yields a resin used in varnishes
Synonyms, antonyms and the broader and narrower relations for sandarac come from Princeton University’s WordNet. Full sources and licences.