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hard drug

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noun Pharmacology.
  1. an addicting drug capable of producing severe physical or psychological dependence, as heroin.
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Origin of hard drug

An Americanism dating back to 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

anesthetic, opium, painkiller, dope, sedative, opiate, tranquilizer, heroin, merchandise, junk, fix, hypnotic, soporific, stuff, analgesic, anodyne, downer, lenitive, laudanum, somnifacient