376 entries under adjective topic. ×

3
trudging
3
unemotional(calm, dull, flat, unfeeling)
3
unenthusiastic(dull, weak, easy, slow)
3
vegetative
2
asleep(dull, quiet, heavy, lazy)
2
beat
2
besotted(dull, simple, slow, stupid)
2
bloodless(unfeeling, unemotional)
2
boorish(dull, slow, stupid)
2
careless(dull, idle, inactive, lethargic)
2
cold(calm, dull, flat, dead)
2
cool(calm, dull, flat, unemotional)
2
deadening
2
debilitated(dull, uncertain, feeble, weary)
2
delayed(adverb, dull, low, slow)
2
delinquent(late, lazy, negligent, delayed)
2
depressed(dull, quiet, flat, slow)
2
desensitized(calm, dull, flat, unemotional)
2
dim-witted(simple, slow, stupid, unintelligent)
2
dirty(quiet, still, stationary)
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APASmart Define. (2016). sluggish thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sluggish/thesaurus/synonyms
ChicagoSmart Define. 2016. "sluggish thesaurus" https://smartdefine.org/sluggish/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sluggish thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sluggish/thesaurus/synonyms>.
MLASmart Define. "sluggish thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/sluggish/thesaurus/synonyms>