Synonyms|141Antonyms|43|Broader|1Narrower|2Related|62
2
otiosity(noun, dullness, apathy, lethargy, negligence)
2
remissness(noun, dullness, apathy, lethargy, negligence)
2
sedentariness(noun, inactivity, laziness)
2
slackness(noun, dullness, apathy, lethargy, negligence)
2
slumber(noun, disregard, dullness, apathy, inactivity)
2
somnolency
2
stolidity(noun, dullness, apathy, lethargy, negligence)
2
tardiness(noun, dullness, apathy, lethargy, negligence)
2
tedium(noun, weariness)
2
torpescence(noun, dullness, apathy, lethargy, negligence)
1
acedia
1
be active(noun, dullness, apathy, lethargy, negligence)
1
benumbedness(noun, dullness)
1
blues(noun, weariness)
1
bluntness(noun, dullness)
1
boorishness(noun, dullness)
1
brain fag
1
cheerlessness(noun, weariness)
1
cloddishness(noun, dullness)
1
coma(noun, disregard, dullness, apathy, inactivity)
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APASmart Define. (2015). sleepiness thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sleepiness/thesaurus/synonyms
ChicagoSmart Define. 2015. "sleepiness thesaurus" https://smartdefine.org/sleepiness/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, sleepiness thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sleepiness/thesaurus/synonyms>.
MLASmart Define. "sleepiness thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/sleepiness/thesaurus/synonyms>