70 entries under noun topic. ×

33
narcotic(adjective, medicine, drug, substance)
21
hypnotic(adjective, medicine, dull, quiet)
20
sedative(adjective, medicine, drug, substance)
20
opiate(adjective, medicine, drug, substance)
17
somnifacient(adjective, medicine, medication, inactivity)
15
sleeping pill(expression, idiom, medicine, medication)
14
slumberous(adjective, dull, quiet, slow)
12
sleeping potion(expression, medicine, medication, substance)
11
tranquillizer(medicine, drug, substance, agent)
9
drug(medicine, health, healing)
8
dozy(adjective, dull, quiet, slow)
8
painkiller(medicine, substance, agent)
8
soothing(adjective, dull, tired, lethargic)
7
anesthetic(adjective, sleepy, dope, spellbinding)
7
calming(adjective, dull, sleepy, balmy)
7
downer(bother, drag, nuisance, dope)
6
anodyne(adjective, description, characteristics, situations)
6
analgesic(medicine, drugs, medicals)
6
balmy(adjective, dull, inactivity, sleepy)
6
calmative(adjective, medicine, substance, agent)
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APASmart Define. (2015). soporific thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/soporific/thesaurus/synonyms
ChicagoSmart Define. 2015. "soporific thesaurus" https://smartdefine.org/soporific/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, soporific thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/soporific/thesaurus/synonyms>.
MLASmart Define. "soporific thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/soporific/thesaurus/synonyms>