WordNet records no synonym and no antonym for stovepiping. 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.
retrieval of information from unconnected databases; the situation that exists when it is necessary to climb out of one database in order to climb down into another; sometimes used for protection against wandering hackers
Synonyms, antonyms and the broader and narrower relations for stovepiping come from Princeton University’s WordNet. Full sources and licences.