large has 16 distinct synonyms spread across 6 of its 11 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 small.
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.
ostentatiously lofty in style
“a man given to large talk”
generous and understanding and tolerant
“a heart big enough to hold no grudges”
4 of the 11 recorded senses carry no synonym, antonym or related term, so they are not shown above. Every sense, with its definition and examples, is on the full entry for large.
Synonyms, antonyms and the broader and narrower relations for large come from Princeton University’s WordNet. Full sources and licences.