4
inattentive(adjective, careless, attention, unconcerned, ignorant)
3
careless(adjective, indifferent, apathetic, unconcerned, ignorant)
3
heedless(adjective, careless, indifferent, apathetic, unconcerned)
3
indifferent(adjective, careless, apathetic, distracted, negligent)
3
negligent(adjective, careless, indifferent, apathetic, unconcerned)
3
thoughtless(adjective, careless, indifferent, apathetic, distracted)
2
absent-minded(adjective, careless, distracted, abstracted, daydreaming)
2
absentminded(adjective, careless, indifferent, apathetic, unconcerned)
2
distracted(adjective, careless, indifferent, apathetic, unconcerned)
2
inadvertent(adjective, careless, indifferent, apathetic, distracted)
2
inobservant(adjective, careless, indifferent, apathetic, distracted)
2
oblivious(adjective, careless, indifferent, apathetic, ignorant)
2
regardless(adjective, careless, indifferent, apathetic, unconcerned)
2
unmindful(adjective, careless, indifferent, apathetic, unconcerned)
2
unobservant(adjective, careless, indifferent, apathetic, unconcerned)
2
unobserving(adjective, careless, indifferent, apathetic, distracted)
1
absent(adjective, careless, indifferent, apathetic, unconcerned)
1
abstracted(adjective, careless, unconcerned, ignorant, distracted)
1
amnesic(undiscerning, unrecognizing)
1
apathetic(adjective, careless, indifferent, distracted, negligent)
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APASmart Define. (2015). unnoticing thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/unnoticing/thesaurus/synonyms
ChicagoSmart Define. 2015. "unnoticing thesaurus" https://smartdefine.org/unnoticing/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, unnoticing thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/unnoticing/thesaurus/synonyms>.
MLASmart Define. "unnoticing thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/unnoticing/thesaurus/synonyms>