WordNet records no synonym and no antonym for daisy chain. It is the only member of each of its synsets, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
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.
(figurative) a series of associated things or people or experiences
flower chain consisting of a string of daisies linked by their stems; worn by students on class day at some schools
Synonyms, antonyms and the broader and narrower relations for daisy chain come from Princeton University’s WordNet. Full sources and licences.