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Definition of psychedelic

psychedelic

/ˌsaɪkəˈdɛlɪk/
psy · che · del · ic
Adverb:psychedelically
•
Plural:psychedelics
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psychedelic Lexical Profile

psychedelic Game Scores & Validity

• adjective

1

Relating to, denoting, or caused by drugs that produce hallucinations and apparent expansion of consciousness.

Example

"Researchers are conducting clinical trials to study the therapeutic potential of psychedelic substances in treating severe depression."

2

Characterized by intense, vivid colors, swirling abstract patterns, or surrealistic audio-visual effects reminiscent of a hallucinogenic experience.

Example

"The concert poster featured psychedelic typography and neon swirling patterns inspired by late-1960s counterculture."

Synonyms
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Antonyms
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• noun

1

A psychoactive substance or drug, such as LSD, psilocybin, or mescaline, that produces hallucinations and altered states of perception and consciousness.

Example

"Modern neuroscience has renewed interest in how psychedelics affect neural connectivity in the human brain."

Synonyms
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• Rhymes for psychedelic

• Nearby Words

psych
psyche
psyched
psychedelic
psychiatric
psychiatrist
psychiatry

Word Origin & Etymology

Coined in 1956 by British psychiatrist Humphry Osmond in correspondence with author Aldous Huxley, combining Ancient Greek 'psyche' (mind, soul) and 'deloun' (to make visible or reveal), literally meaning 'mind-manifesting'.

Cite this Entry

Wordmom. (2026). Definition of Psychedelic. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/psychedelic
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