5
oversight(noun, disregard, neglect, disrespect, disdain)
5
passiveness(noun, disregard, dullness, apathy, inactivity)
5
recklessness(indifference, insensibility)
5
unresponsiveness(noun, disregard, feelings, apathy, inactivity)
4
casualness(nonchalance, informality)
4
heartlessness
4
impartiality(noun, disregard, interest, lack, reserve)
4
inactivity(noun, disregard, dullness, apathy, indifference)
4
lukewarmness(noun, indifference)
4
pococurantism(noun, melancholy, dullness, apathy, indifference)
4
sloth(noun, disregard, dullness, apathy, inactivity)
4
sluggishness(noun, disregard, dullness, apathy, inactivity)
4
torpidity(noun, disregard, dullness, apathy, inactivity)
4
unfeelingness(noun, indifference, insensitivity, unresponsiveness, unwarmheartedness)
3
callousness(noun, disregard, interest, lack, apathy)
3
disdain(noun, disregard, neglect, interest, lack)
3
disregardfulness(noun, inattention)
3
easygoingness(noun, indifference)
3
emotionlessness(noun, disregard, apathy, inactivity, indifference)
3
failure(noun, disregard, negligence, inattention, abandonment)
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APASmart Define. (2016). unconcern thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unconcern/thesaurus/synonyms
ChicagoSmart Define. 2016. "unconcern thesaurus" https://smartdefine.org/unconcern/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, unconcern thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unconcern/thesaurus/synonyms>.
MLASmart Define. "unconcern thesaurus" 31 March 2016. Web. 24 September 2026. <https://smartdefine.org/unconcern/thesaurus/synonyms>