82 entries under careless topic. ×

10
blind(adjective, indifferent, apathetic, unconcerned)
9
unreasonable(adjective, stupid, unthinking, impetuous)
8
irrational(adjective, stupid, unthinking, impetuous)
7
indiscriminate(adjective, dull, indifferent, casual)
7
thoughtless(adjective, indifferent, foolish, stupid)
6
mindless(adjective, stupid, unthinking, inattention)
6
unthinking(adjective, indifferent, foolish, stupid)
5
heedless(adjective, indifferent, apathetic, unconcerned)
5
senseless(adjective, stupid, unthinking, obtuse)
5
unperceiving(adjective, indifferent, apathetic, insensitive)
4
imprudent(adjective, stupid, casual, unthinking)
4
injudicious(adjective, dull, indifferent, foolish)
4
insensitive(adjective, dull, indifferent, thoughtless)
4
myopic(adjective, dull, indifferent, thoughtless)
4
obtuse(adjective, stupid, unthinking, unperceptive)
4
witless(adjective, stupid, unthinking, obtuse)
3
foolish(adjective, stupid, unthinking, obtuse)
3
inattentive(adjective, indifferent, attention, unconcerned)
3
inconsiderate(adjective, dull, indifferent, thoughtless)
3
indifferent(adjective, apathetic, insensitive, ignorant)
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APASmart Define. (2015). undiscerning thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/undiscerning/thesaurus/synonyms
ChicagoSmart Define. 2015. "undiscerning thesaurus" https://smartdefine.org/undiscerning/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, undiscerning thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/undiscerning/thesaurus/synonyms>.
MLASmart Define. "undiscerning thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/undiscerning/thesaurus/synonyms>