uncut has 4 distinct synonyms spread across 4 of its 7 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. Its one recorded opposite is cut.
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.
(used of grass or vegetation) not cut down with a hand implement or machine
“uncut grass”
(of pages of a book) having adjacent leaves still joined at the fore edge
“a book with its leaves still uncut”
not cut
1 of the 7 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 uncut.
Synonyms, antonyms and the broader and narrower relations for uncut come from Princeton University’s WordNet. Full sources and licences.