376 entries under adjective topic. ×

5
stiff(dull, moderate, low, slow)
5
stuporous(action, dull, lethargic)
5
thick-witted(dull, stupid)
5
uninterested(dull, weak, heavy, still)
4
boring(dull, quiet, simple, flat)
4
bovine
4
do-nothing(action, dull, informal, lazy)
4
dozy(quiet, slow, heavy, tired)
4
draggy(dull, quiet, flat, low)
4
dumb(dull, simple, slow, silly)
4
late(adverb, dull, low, slow)
4
pokey(dull, slow, inactive, listless)
4
quiescent(calm, dull, gentle, lazy)
4
sleeping
4
sluggard(action, dull, slow, still)
4
slumbering(calm, gentle, inactive, passive)
4
standing(quiet, still, stationary)
4
stationary(quiet, still, inert, motionless)
4
stoic(calm, unemotional, composed)
4
unmoving(quiet, still, lifeless, motionless)
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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>