1
blockout(blank, negligence, vagueness, inattention, amnesia)
1
blowziness
1
blunder(noun, slip, mistake, lapse, error)
1
blunderheadedness
1
blundering
1
boggling
1
boredom
1
botchery
1
botching
1
brazenness(noun, rashness)
1
break(noun, slip, breach, lapse, failing)
1
briskness(noun, drive, press, rush, dash)
1
bungling
1
bustle(noun, drive, press, rush, dash)
1
callousness(noun, disregard, interest, lack, apathy)
1
cancellation(noun, slip, breach, lapse, failing)
1
careless
1
careless abandon
1
celerity(noun, drive, press, rush, dash)
1
chasm(noun, slip, mistake, breach, lapse)
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APASmart Define. (2015). carelessness thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/carelessness/thesaurus/synonyms
ChicagoSmart Define. 2015. "carelessness thesaurus" https://smartdefine.org/carelessness/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, carelessness thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/carelessness/thesaurus/synonyms>.
MLASmart Define. "carelessness thesaurus" 23 December 2015. Web. 24 September 2026. <https://smartdefine.org/carelessness/thesaurus/synonyms>