integrated has 5 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 2 recorded opposites are nonintegrated, segregated.
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.
formed or united into a whole
formed into a whole or introduced into another entity
“a more closely integrated economic and political system”
not segregated; designated as available to all races or groups
“integrated schools”
resembling a living organism in organization or development
“society as an integrated whole”
Synonyms, antonyms and the broader and narrower relations for integrated come from Princeton University’s WordNet. Full sources and licences.