Final answer:
The antonym for 'elucidate' is 'obfuscate,' which means to make something less clear or more confusing. 'Confuse' can also be used as an antonym.
Step-by-step explanation:
The antonym for elucidate is obfuscate. To elucidate means to make something clear or to explain it, so the antonym would be to make something less clear or more confusing. Another word that could serve as an antonym for elucidate is confuse.