173 entries under dull topic. ×

3
inattentive(adjective, neglect, careless, indifferent)
3
laggard(adjective, quiet, easy, careless)
3
laid-back(adjective, quiet, cool, weak)
3
stuporous(adjective, lethargic)
3
tardy(idle, sluggish, late, lazy)
2
behindhand(sluggish, late, lazy, negligent)
2
boring(adjective, quiet, flat, slow)
2
delayed(adjective, low, late, behind)
2
depressed(adjective, quiet, flat, slow)
2
dragging(adjective, slow, heavy, sluggish)
2
draggy(adjective, action, quiet, flat)
2
hebetudinous(adjective, slow, heavy, apathetic)
2
insensitive(adjective, quiet, flat, heavy)
2
insentient(adjective, cold, lifeless, inanimate)
2
lingering(late, behind)
2
neglectful(adjective, careless, indifferent, idle)
2
obtuse(adjective, heavy, stupid, impassive)
2
off(adjective, moderate, low, slow)
2
out(adjective, quiet, slow, heavy)
2
out of it(expression, adjective, idiom, quiet)
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APASmart Define. (2015). inactive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inactive/thesaurus/synonyms
ChicagoSmart Define. 2015. "inactive thesaurus" https://smartdefine.org/inactive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, inactive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inactive/thesaurus/synonyms>.
MLASmart Define. "inactive thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/inactive/thesaurus/synonyms>