Synonyms|472Antonyms|66|Broader|58Narrower|73Related|265
4
tranquillizing
4
yawning(adjective, dull, quiet, slow, effect)
3
tranquilliser(noun, drug)
3
anesthetized(adjective, senseless)
3
apathetic(adjective, dull)
3
benumbed(adjective, dull)
3
blue(shade, colour, tone, adjective)
3
drab
3
half asleep(expression, adjective, tired, lethargic, sleepy)
3
insipid(adjective, dull, flat, ordinary, dry)
3
languid(adjective, tired, lethargic, sleepy, dazed)
2
dead(adjective, flat, stupid, ordinary, dry)
2
unexciting(adjective, dull, dry, boring, tedious)
2
prosaic(adjective, dull, flat, stupid, ordinary)
2
acupuncture
2
arid(adjective, dull, flat, stupid, ordinary)
2
banal
2
barbiturate
2
bore(noun, drag, nuisance, yawn, nonevent)
2
bovine(adjective, dull)
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APASmart Define. (2015). soporific thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/soporific/thesaurus/synonyms
ChicagoSmart Define. 2015. "soporific thesaurus" https://smartdefine.org/soporific/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, soporific thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/soporific/thesaurus/synonyms>.
MLASmart Define. "soporific thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/soporific/thesaurus/synonyms>