91 entries under sluggish topic. ×

1
neglectful(dull, careless, idle, inactive)
1
neutral(adjective, dull, monotonous, lethargic)
1
off(adjective, dull, slow, heavy)
1
out of it(expression, adjective, idiom, dull, careless)
1
pokey(adjective, dull, slow, heavy)
1
procrastinating(adjective, dull, careless, indifferent, idle)
1
remiss(dull, careless, idle, inactive)
1
shiftless(adjective, dull, careless, indifferent, idle)
1
sleepyheaded(adjective, dull, slow, heavy)
1
slow-moving(adjective, dull, slow, careless, indifferent)
1
sluggard(adjective, dull, slow, heavy, still)
1
slumberous(adjective, dull, slow, heavy, still)
1
snoozy(adjective, dull, careless, indifferent, idle)
1
stolid(adjective, calm, quiet, tough, flat)
1
stupefied(adjective, weary, tired, impassive)
1
sullen(adjective, dull, slow, heavy)
1
tardy(adjective, dull, careless, indifferent, idle)
1
trifling(adjective, dull, careless, indifferent, idle)
1
unenergetic(adjective, dull, careless, indifferent, idle)
1
unindustrious(adjective, dull, careless, indifferent, idle)
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APASmart Define. (2015). lifeless thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/lifeless/thesaurus/synonyms
ChicagoSmart Define. 2015. "lifeless thesaurus" https://smartdefine.org/lifeless/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, lifeless thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/lifeless/thesaurus/synonyms>.
MLASmart Define. "lifeless thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/lifeless/thesaurus/synonyms>