Antonyms of adj hallucinogenic

1 sense of hallucinogenic

Sense 1
hallucinogenic -- (capable of producing hallucinations; "LSD is a powerful hallucinogenic drug")

INDIRECT (VIA psychoactive) -> nonpsychoactive -- (not affecting the mind or mental processes; "a nonpsychoactive pain reliever")

Similarity of adj hallucinogenic

1 sense of hallucinogenic

Sense 1
hallucinogenic -- (capable of producing hallucinations; "LSD is a powerful hallucinogenic drug")
       => psychoactive (vs. nonpsychoactive), psychotropic -- (affecting the mind or mood or other mental processes; "psychoactive drugs")