14
depressant(noun, adjective, medicine, treatment, drug)
14
drug(noun, adjective, medicine, treatment, medication)
12
soporiferous(adjective, effect, affection, characteristics, traits)
11
downer(noun, substance, sleep, chemistry, chemicals)
11
somnifacient(noun, adjective, awareness, sleep, sleepy)
10
tranquillizer(noun, drug, substance, chemistry, chemicals)
10
dope(noun, medicine, treatment, drug, medication)
9
narcotizing(adjective, effect, affection, characteristics)
8
addictive drug(expression, medicine, substance, chemistry)
8
lenitive(noun, adjective, effect, affection, remedy)
8
medical(adjective, healing, remedy, remedial, therapeutic)
8
somniferous(noun, adjective, dull, quiet, slow)
8
soothing(adjective, deep, captivating, spellbinding, hypnotic)
7
illegal drug(expression, idiom, medicine, substance, chemistry)
7
narcotising(adjective, quality, characteristics, traits)
7
somnolent(adjective, dull, quiet, heavy, awareness)
6
calmative(noun, adjective, effect, affection, characteristics)
6
hard drug(noun, expression, idiom, substance, sleep)
6
hypnotizing(adjective, deep, captivating, spellbinding, hypnotic)
6
mesmeric(adjective, deep, captivating, spellbinding, hypnotic)
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APASmart Define. (2015). narcotic thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/narcotic/thesaurus/synonyms
ChicagoSmart Define. 2015. "narcotic thesaurus" https://smartdefine.org/narcotic/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, narcotic thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/narcotic/thesaurus/synonyms>.
MLASmart Define. "narcotic thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/narcotic/thesaurus/synonyms>