noise has 9 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. 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 auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience
“modern music is just noise to me”
electrical or acoustic activity that can disturb communication
a loud outcry of protest or complaint
“the announcement of the election recount caused a lot of noise”
incomprehensibility resulting from irrelevant information or meaningless facts or remarks
“all the noise in his speech concealed the fact that he didn't have anything to say”
the quality of lacking any predictable order or plan
Synonyms, antonyms and the broader and narrower relations for noise come from Princeton University’s WordNet. Full sources and licences.