90 entries under indifferent topic. ×

5
lukewarm(adjective, listless, lethargic, languid)
5
neutral(adjective, listless, lethargic, languid)
5
somnolent(adjective, dull, careless, idle)
5
spiritless(adjective, dull, quiet, gentle, careless)
5
unemotional(adjective, calm, dull, flat)
5
unmoved(adjective, calm, still, unconcerned)
4
callous(adjective, unconcerned, uncaring, insensitive)
4
laid-back(adjective, quiet, informal, careless)
4
stoic(adjective, calm, dull, unconcerned)
4
unfeeling(adjective, calm, dull, cool, flat)
4
untouched(adjective, unconcerned, uncaring, listless)
3
blah(adjective, calm, dull, flat)
3
out of it(expression, adjective, idiom, dull, careless)
3
perfunctory
2
dilatory(adjective, dull, quiet, easy, careless)
2
drowsy(adjective, dull, quiet, easy, careless)
2
laggard(adjective, dull, quiet, easy, careless)
2
lagging(adjective, dull, quiet, easy, careless)
2
procrastinating(adjective, dull, quiet, easy, careless)
2
slow-moving(adjective, dull, quiet, easy, careless)
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APASmart Define. (2016). passive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/passive/thesaurus/synonyms
ChicagoSmart Define. 2016. "passive thesaurus" https://smartdefine.org/passive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, passive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/passive/thesaurus/synonyms>.
MLASmart Define. "passive thesaurus" 10 February 2016. Web. 25 September 2026. <https://smartdefine.org/passive/thesaurus/synonyms>