discriminate 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 indiscriminate.
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.
distinguish
“I could not discriminate the different tastes in this complicated dish”
marked by the ability to see or make fine distinctions
“discriminate judgments”
Synonyms, antonyms and the broader and narrower relations for discriminate come from Princeton University’s WordNet. Full sources and licences.