psychedelic

Etymology

From Ancient Greek ψυχή (psukhḗ, “mind, soul”) + δῆλος (dêlos, “manifest, visible”) + -ic. Coined by English psychiatrist Humphry Osmond in 1956 in a letter to Aldous Huxley.

adj

1. Of, containing, generating, or reminiscent of drug-induced hallucinations, distortions of perception, altered awareness etc.
   With those drugs has come the psychedelic philosophy, an impassioned belief in the self-revealing, mind-expanding powers of potent weeds and seeds and chemical compounds known to man since prehistory but wholly alien to the rationale of Western society. 1967, Joe David Brown, editor, The Hippies, New York: Time, Inc, page 2
2. (of graphics, etc.) Having bright colours, abstract shapes, etc. reminiscent of drug-induced hallucinations or distortions of perception.

noun

1. Any psychoactive substance (such as LSD or psilocybin) which, when consumed, causes perceptual changes (sometimes erratic and uncontrollable), visual hallucination, and altered awareness of the body and mind.
   I was going to become a three-drug connection to all my friends, psychedelics, hash and pot. 2006, Dean McCormick, Dead End Street, page 62

intj

1. (hippie slang) awesome, cool, groovy