generalisation has 7 distinct synonyms spread across 4 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.
an idea or conclusion having general application
“he spoke in broad generalities”
the process of formulating general concepts by abstracting common properties of instances
reasoning from detailed facts to general principles
(psychology) transfer of a response learned to one stimulus to a similar stimulus
Synonyms, antonyms and the broader and narrower relations for generalisation come from Princeton University’s WordNet. Full sources and licences.