7
very upset
5
dark
5
heartbreaking
4
depressing
4
distressing
4
lonely
3
cheerless
3
heartrending
2
black
2
cold
2
demoralizing
2
disheartening
2
grievous
2
saddening
2
stoic
2
unkind
2
unmoving
2
upsetting
1
bleak
1
deplorable
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APASmart Define. (2014). heartwarming thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/heartwarming/thesaurus/antonyms
ChicagoSmart Define. 2014. "heartwarming thesaurus" https://smartdefine.org/heartwarming/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2014, heartwarming thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/heartwarming/thesaurus/antonyms>.
MLASmart Define. "heartwarming thesaurus" 4 January 2014. Web. 25 September 2026. <https://smartdefine.org/heartwarming/thesaurus/antonyms>