saturated has 2 distinct synonyms spread across 2 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. Its one recorded opposite is unsaturated.
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.
being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance
“a saturated solution”
used especially of organic compounds; having all available valence bonds filled
“saturated fats”
(of color) being chromatically pure; not diluted with white or grey or black
Synonyms, antonyms and the broader and narrower relations for saturated come from Princeton University’s WordNet. Full sources and licences.