Antonyms of adj psychoactive

1 sense of psychoactive

Sense 1
psychoactive (vs. nonpsychoactive), psychotropic -- (affecting the mind or mood or other mental processes; "psychoactive drugs")

nonpsychoactive (vs. psychoactive) -- (not affecting the mind or mental processes; "a nonpsychoactive pain reliever")

Similarity of adj psychoactive

1 sense of psychoactive

Sense 1
psychoactive (vs. nonpsychoactive), psychotropic -- (affecting the mind or mood or other mental processes; "psychoactive drugs")
       => hallucinogenic -- (capable of producing hallucinations; "LSD is a powerful hallucinogenic drug")
       => mind-altering -- (producing mood changes or distorted perception; "hallucinogenic drugs are mind-altering substances")
       => mind-expanding -- ((of hallucinogenic drugs) giving a sense of heightened or broader awareness)
       => mind-bending, mind-blowing -- (intensely affecting the mind especially in producing hallucinations)
       => psychedelic -- (producing distorted sensory perceptions and feelings or altered states of awareness or sometimes states resembling psychosis; "psychedelic drugs like psilocybin and mescaline")