8
unresponsive(adjective, calm, dull, quiet, flat)
7
debilitated(adjective, dull, weary, tired, sluggish)
7
easygoing(adjective, calm, cool, energy, slow)
7
feeble(adjective, dull, weak, easy, slow)
7
flaccid(adjective, weary)
7
frigid(adjective, calm, dull, flat, temper)
7
half ass
7
lumpish(adjective, dull, slow, heavy, sluggish)
7
motionless(adjective, quiet, cool, still, peaceful)
7
negligent(adjective, calm, cool, sharp, rude)
7
somnolent(adjective, quiet, slow, relaxed, heavy)
7
still(adjective, dull, quiet, cool, moderate)
7
stolid(adjective, calm, dull, quiet, flat)
7
unhurried(adjective, dull, quiet, weak, easy)
7
unmoved(adjective, dull, quiet, cool, moderate)
6
benumbed(adjective, dull, quiet, flat, heavy)
6
blase(adjective, calm, beat, cool, relaxed)
6
blue(adjective, dull, low, sad, unhappy)
6
cold(adjective, calm, dull, cool, flat)
6
dead(adjective, quiet, beat, flat, slow)
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APASmart Define. (2016). listless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/listless/thesaurus/synonyms
ChicagoSmart Define. 2016. "listless thesaurus" https://smartdefine.org/listless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, listless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/listless/thesaurus/synonyms>.
MLASmart Define. "listless thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/listless/thesaurus/synonyms>