1
drag(noun, bother, nuisance, yawn, nonevent)
1
draggy(adjective, dull, quiet, slow, heavy)
1
drip(noun, bother, drag, nuisance, yawn)
1
driveling(adjective, flat, stupid, ordinary, dry)
1
droning(adjective, dull, flat, boring, tedious)
1
drugged with sleep(expression, idiom)
1
dull as dishwater(expression, adjective, idiom, dull, boring)
1
dull person(noun, expression, bother, drag, nuisance)
1
dusty(adjective, dull, boring, tedious, dreary)
1
ennuyant
1
faint(adjective, senseless)
1
familiar(adjective, flat, stupid, ordinary, dry)
1
flat as pancake(expression, adjective, idiom, dull, boring)
1
flat tire(noun, expression, bother, drag, nuisance)
1
goofball
1
hackneyed(adjective, flat, stupid, ordinary, dry)
1
hallucinogen
1
hard stuff
1
headache(noun, bother, drag, nuisance, yawn)
1
heartless
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APASmart Define. (2015). soporific thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/soporific/thesaurus/synonyms
ChicagoSmart Define. 2015. "soporific thesaurus" https://smartdefine.org/soporific/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, soporific thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/soporific/thesaurus/synonyms>.
MLASmart Define. "soporific thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/soporific/thesaurus/synonyms>