breeding has 14 distinct synonyms spread across 4 of its 6 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.
elegance by virtue of fineness of manner and expression
the result of good upbringing (especially knowledge of correct social behavior)
“a woman of breeding and refinement”
helping someone grow up to be an accepted member of the community
“they debated whether nature or nurture was more important”
the production of animals or plants by inbreeding or hybridization
the sexual activity of conceiving and bearing offspring
1 of the 6 recorded senses carries no synonym, antonym or related term, so it is not shown above. Every sense, with its definition and examples, is on the full entry for breeding.
Synonyms, antonyms and the broader and narrower relations for breeding come from Princeton University’s WordNet. Full sources and licences.