limit has 20 distinct synonyms spread across 8 of its 9 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.
the greatest possible degree of something
“what he did was beyond the bounds of acceptable behavior”
the mathematical value toward which a function goes as the independent variable approaches infinity
the greatest amount of something that is possible or allowed
“there are limits on the amount you can bet”
Synonyms, antonyms and the broader and narrower relations for limit come from Princeton University’s WordNet. Full sources and licences.
restrict or confine within limits
“I limit you to two visits to the pub a day”