149 entries under adjective topic. ×

1
mindless
1
mooney(dull, slow, heavy, sluggish)
1
moronic
1
off(dull, slow, heavy, sluggish)
1
pokey(dull, slow, heavy, sluggish)
1
slack(dull, slow, heavy, sluggish)
1
sleepyheaded(dull, slow, heavy, sluggish)
1
sluggard(dull, slow, heavy, sluggish)
1
slumberous(dull, slow, heavy, sluggish)
1
spanking
1
sullen(dull, slow, heavy, sluggish)
1
thick-witted
1
unhurried
1
unreflective
1
unresponsive(dull, slow, heavy, sluggish)
1
weak-minded
1
whopping
1
witless
1
wooden
0
addle-headed
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APASmart Define. (2015). lumpish thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/lumpish/thesaurus/synonyms
ChicagoSmart Define. 2015. "lumpish thesaurus" https://smartdefine.org/lumpish/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, lumpish thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/lumpish/thesaurus/synonyms>.
MLASmart Define. "lumpish thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/lumpish/thesaurus/synonyms>