psychoactive

adjective

psy·​cho·​ac·​tive ˌsī-kō-ˈak-tiv How to pronounce psychoactive (audio)
: affecting the mind or behavior
psychoactive drugs

Examples of psychoactive in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Cannabinoids are found naturally in the brain in a non-psychoactive form called endocannabinoids. Shoshi Parks, Popular Science, 3 June 2026 While drugs like psilocybin and ibogaine — a psychoactive compound derived from a West African shrub that some advocates believe may help treat addiction and traumatic brain injuries — are considered classic psychedelics, MDMA is technically classified as an empathogen. Brandon Gomez, CNBC, 31 May 2026 Of course, these levels are nowhere near high enough to affect humans negatively or to have psychoactive effects. Scott Travers, Forbes.com, 30 May 2026 In recent years a handful of specialists in the fields of psychiatry, neuroscience and addiction medicine have begun looking at how ibogaine’s psychoactive properties can reset brains scrambled by trauma and substance abuse. Johnny Dodd, PEOPLE, 29 May 2026 See All Example Sentences for psychoactive

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of psychoactive was in 1958

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Cite this Entry

“Psychoactive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/psychoactive. Accessed 9 Jun. 2026.

Kids Definition

psychoactive

adjective
psy·​cho·​ac·​tive ˌsī-kō-ˈak-tiv How to pronounce psychoactive (audio)
: affecting the mind or behavior
psychoactive drugs

Medical Definition

psychoactive

adjective
psy·​cho·​ac·​tive ˌsī-kō-ˈak-tiv How to pronounce psychoactive (audio)
: affecting the mind or behavior
psychoactive drugs
THC is the principal psychoactive ingredient in marijuana
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