WordNet records no synonym and no antonym for laying on of hands. 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.
the application of a faith healer's hands to the patient's body
laying hands on a person's head to invoke spiritual blessing in Christian ordination
Synonyms, antonyms and the broader and narrower relations for laying on of hands come from Princeton University’s WordNet. Full sources and licences.