6
grimly
3
banemalentously
3
coldheartedly
3
evilly
3
hardheartedly
3
hatefully
3
inconsiderately
3
malevolently
3
nastily
3
unwarmheartedly(noun, cordially, agreeably, sympathetically)
2
cruelly
2
maliciously
2
selfishly
1
barbarously
1
cold-fistedly(noun, warm-heartedly)
1
fiercely
1
hostilely
1
lukewarmly
1
meanly
1
viciously
10 years ago|747 views|share |citing 
APASmart Define. (2016). kindheartedly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/kindheartedly/thesaurus/antonyms
ChicagoSmart Define. 2016. "kindheartedly thesaurus" https://smartdefine.org/kindheartedly/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, kindheartedly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/kindheartedly/thesaurus/antonyms>.
MLASmart Define. "kindheartedly thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/kindheartedly/thesaurus/antonyms>