WordNet records no synonym and no antonym for honeycomb. 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.
carve a honeycomb pattern into
“The cliffs were honeycombed”
penetrate thoroughly and into every part
“the revolutionaries honeycombed the organization”
make full of cavities, like a honeycomb
Synonyms, antonyms and the broader and narrower relations for honeycomb come from Princeton University’s WordNet. Full sources and licences.
a structure of small hexagonal cells constructed from beeswax by bees and used to store honey and larvae
a framework of hexagonal cells resembling the honeycomb built by bees