WordNet records no synonym and no antonym for creation science. It is the only member of its synset, 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.
an effort to give scientific support for the truth of the account of Creation given in the Book of Genesis
Synonyms, antonyms and the broader and narrower relations for creation science come from Princeton University’s WordNet. Full sources and licences.