WordNet records no synonym and no antonym for eminent domain. It is the only member of its synset, 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.
the right of the state to take private property for public use; the Fifth Amendment that was added to the Constitution of the United States requires that just compensation be made
Synonyms, antonyms and the broader and narrower relations for eminent domain come from Princeton University’s WordNet. Full sources and licences.