0
manful
0
manly
0
matter of fact(expression, idiom)
0
mean machine
0
mechanical
0
merciless
0
mettlesome
0
nonchalant
0
nondiscriminatory
0
nonemotional
0
nonreactive
0
not giving a damn(expression, idiom)
0
nowhere
0
oak
0
out of it(expression, idiom)
0
plucky
0
poker-faced
0
purportless
0
resolute
0
rolling with punches(expression, idiom)
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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>