WordNet records no synonym and no antonym for pave. 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.
a setting with precious stones so closely set that no metal shows
cover with a material such as stone or concrete to make suitable for vehicle traffic
“pave the roads in the village”
Synonyms, antonyms and the broader and narrower relations for pave come from Princeton University’s WordNet. Full sources and licences.