analytical has 1 distinct synonym spread across 2 of its 2 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.
using or skilled in using analysis (i.e., separating a whole--intellectual or substantial--into its elemental parts or basic principles)
“an analytic experiment”
of a proposition that is necessarily true independent of fact or experience
“`all spinsters are unmarried' is an analytic proposition”
Synonyms, antonyms and the broader and narrower relations for analytical come from Princeton University’s WordNet. Full sources and licences.