70 entries under unfeeling topic. ×

1
seasoned(adjective, strong, hard, solid, stiff)
1
steeled(adjective, strong, hard, solid, stiff)
1
thick-skinned(adjective, calm, hard, cool, tough)
1
unashamed(adjective, callous, unbending, toughened)
1
unbending(adjective, strong, hard, tough, fixed)
1
unkind(adjective, hard, tough, harsh, indifferent)
1
unrepenting(adjective, callous, unbending, toughened)
1
unsubmissive(adjective, callous, unbending, toughened)
0
accustomed(adjective, unbending, toughened, disciplined)
0
anesthetized(adjective, hard-hearted, nowhere, obdurate)
0
benumbed(adjective, unbending, toughened, seasoned)
0
brutal(adjective, tough, harsh, cruel, grim)
0
cold-blooded(adjective, tough, harsh, cruel, grim)
0
cold-hearted(adjective, cruel, insensitive, callous)
0
contemptuous(adjective, unbending, toughened, seasoned)
0
cool cat(expression, adjective, hard-hearted, nowhere)
0
disdainful(adjective, unbending, toughened, seasoned)
0
emotionless(adjective, hard-hearted, nowhere, obdurate)
0
habituated(adjective, unbending, toughened, seasoned)
0
hard-hearted(adjective, cruel, stiff, insensitive)
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APASmart Define. (2015). hard as nails thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hard_as_nails/thesaurus/synonyms
ChicagoSmart Define. 2015. "hard as nails thesaurus" https://smartdefine.org/hard_as_nails/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, hard as nails thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hard_as_nails/thesaurus/synonyms>.
MLASmart Define. "hard as nails thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/hard_as_nails/thesaurus/synonyms>