WordNet records no synonym and no antonym for makeover. It is the only member of each of its synsets, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
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.
an overall beauty treatment (involving a person's hair style and cosmetics and clothing) intended to change or improve a person's appearance
a complete reconstruction and renovation of something
“the blighted neighborhood underwent a total makeover”
Synonyms, antonyms and the broader and narrower relations for makeover come from Princeton University’s WordNet. Full sources and licences.