scrambler has 2 distinct synonyms spread across 1 of its 3 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.
a rapid mover; someone who scrambles
“their quarterback was a good scrambler”
a lightweight motorcycle equipped with rugged tires and suspension; an off-road motorcycle designed for riding cross country or over unpaved ground
Synonyms, antonyms and the broader and narrower relations for scrambler come from Princeton University’s WordNet. Full sources and licences.
electronic equipment that makes speech unintelligible during transmission and restores it at reception