restore has 13 distinct synonyms spread across 5 of its 5 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. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
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.
return to its original or usable and functioning condition
“restore the forest to its original pristine condition”
return to life; get or give new life or energy
“The week at the spa restored me”
bring back into original existence, use, function, or position
“restore law and order”
Synonyms, antonyms and the broader and narrower relations for restore come from Princeton University’s WordNet. Full sources and licences.