evidence has 10 distinct synonyms spread across 4 of its 6 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.
your basis for belief or disbelief; knowledge on which to base belief
“the evidence that smoking causes lung cancer is very compelling”
an indication that makes something evident
“his trembling was evidence of his fear”
(law) all the means by which any alleged matter of fact whose truth is investigated at judicial trial is established or disproved
provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
“His high fever attested to his illness”
Synonyms, antonyms and the broader and narrower relations for evidence come from Princeton University’s WordNet. Full sources and licences.