128 entries under adjective topic. ×

19
thoughtless(sharp, rude, cold, indifferent)
16
unthinking(careful, courtesy, thoughtless)
13
inconsiderate(sharp, rude, cold, indifferent)
11
heedless(sharp, rude, cold, indifferent)
9
unmindful(sharp, rude, cold, indifferent)
8
inattentive(sharp, rude, cold, indifferent)
7
careless(cold, forget, uncaring, inattentive)
7
mindless
7
negligent(sharp, rude, cold, indifferent)
6
disregardful(careful, courtesy, thoughtless)
6
unheeding(cold, forget, thoughtless, uncaring)
6
unkind(sharp, rude, indifferent, short)
6
unreflective
5
forgetful(cold, forget, uncaring, inattentive)
5
inadvertent(cold, forget, uncaring, inattentive)
5
insensitive
5
neglectful(sharp, rude, cold, indifferent)
5
unheedful(cold, forget, uncaring, inattentive)
5
unobliging(cold, forget, uncaring, inattentive)
5
unreasonable
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APASmart Define. (2015). unthoughtful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unthoughtful/thesaurus/synonyms
ChicagoSmart Define. 2015. "unthoughtful thesaurus" https://smartdefine.org/unthoughtful/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unthoughtful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unthoughtful/thesaurus/synonyms>.
MLASmart Define. "unthoughtful thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unthoughtful/thesaurus/synonyms>