whole has 14 distinct synonyms spread across 5 of its 8 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 fractional, half.
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.
including all components without exception; being one unit or constituting the full amount or extent or duration; complete
“gave his whole attention”
(of siblings) having the same parents
“whole brothers and sisters”
an assemblage of parts that is regarded as a single entity
“how big is that part compared to the whole?”
to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly')
“he was wholly convinced”
Synonyms, antonyms and the broader and narrower relations for whole come from Princeton University’s WordNet. Full sources and licences.