100 entries under careless topic. ×

4
mindless(adjective, stupid, careful, casual)
4
preoccupied(adjective, indifferent, apathetic, unconcerned)
4
unconscious(adjective, indifferent, apathetic, remote)
4
undiscerning(adjective, indifferent, foolish, stupid)
4
unperceiving(adjective, indifferent, apathetic, insensitive)
2
absent(adjective, indifferent, apathetic, unconcerned)
2
abstracted(noun, adjective, casual, thoughtless)
2
dozy(adjective, distracted, abstracted, daydreaming)
2
dreamy(adjective, indifferent, apathetic, unconcerned)
2
listless(adjective, indifferent, apathetic, distracted)
2
out to lunch(expression, adjective, idiom, indifferent)
2
unnoticing(adjective, indifferent, apathetic, unconcerned)
2
unobserving(adjective, indifferent, apathetic, distracted)
1
absentminded(adjective, indifferent, apathetic, unconcerned)
1
absorbed(remote, distracted, heedless, scatterbrained)
1
airheaded(remote, distracted, heedless, scatterbrained)
1
apathetic(noun, adjective, indifferent, distracted)
1
bemused(remote, distracted, heedless, scatterbrained)
1
bored(adjective, indifferent, apathetic, distracted)
1
daydreaming(adjective, remote, vague, rash)
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APASmart Define. (2015). unobservant thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unobservant/thesaurus/synonyms
ChicagoSmart Define. 2015. "unobservant thesaurus" https://smartdefine.org/unobservant/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unobservant thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unobservant/thesaurus/synonyms>.
MLASmart Define. "unobservant thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unobservant/thesaurus/synonyms>