0
cruel
0
deaf to
0
demoniac
0
detached
0
disimpassioned
0
disinterested
0
dispassionate
0
dog eat dog(expression, idiom)
0
doublespeak
0
draggy
0
emotionless
0
feelingless
0
feller
0
gallant
0
going through motions(expression, idiom)
0
going with the flow(expression, idiom)
0
hard-as-nails
0
hard-hearted
0
hard as nails(expression, idiom)
0
hardboiled
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APASmart Define. (2013). iron-hearted thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/iron-hearted/thesaurus/related
ChicagoSmart Define. 2013. "iron-hearted thesaurus" https://smartdefine.org/iron-hearted/thesaurus/related (accessed September 30, 2026).
HarvardSmart Define 2013, iron-hearted thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/iron-hearted/thesaurus/related>.
MLASmart Define. "iron-hearted thesaurus" 19 May 2013. Web. 30 September 2026. <https://smartdefine.org/iron-hearted/thesaurus/related>