inscription has 2 distinct synonyms spread across 2 of its 3 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
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.
letters inscribed (especially words engraved or carved) on something
a short message (as in a book or musical work or on a photograph) dedicating it to someone or something
Synonyms, antonyms and the broader and narrower relations for inscription come from Princeton University’s WordNet. Full sources and licences.
the activity of inscribing (especially carving or engraving) letters or words