recapitulation has 3 distinct synonyms spread across 2 of its 4 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.
emergence during embryonic development of various characters or structures that appeared during the evolutionary history of the strain or species
(music) the section of a composition or movement (especially in sonata form) in which musical themes that were introduced earlier are repeated
a summary at the end that repeats the substance of a longer discussion
(music) the repetition of themes introduced earlier (especially when one is composing the final part of a movement)
Synonyms, antonyms and the broader and narrower relations for recapitulation come from Princeton University’s WordNet. Full sources and licences.