Synonyms|118Antonyms|16|Broader|0Narrower|0Related|111

66 entries under toughened topic. ×

1
obdurate(adjective, hard, unfeeling, unsympathetic, hardened)
1
obtuse(adjective, hard, unfeeling, unsympathetic, prepared)
1
prepared(adjective, hard, unfeeling, unsympathetic, hardened)
1
resistant(adjective, hard, unfeeling, unsympathetic, prepared)
1
seasoned(adjective, hard, unfeeling, unsympathetic, prepared)
1
steeled(adjective, hard, unfeeling, unsympathetic, prepared)
1
thick-skinned(adjective, hard, unfeeling, unsympathetic, hardened)
1
unashamed(adjective, hard, unfeeling, unsympathetic, prepared)
1
unbending(adjective, hard, unfeeling, unsympathetic, hardened)
1
uncompassionate(adjective, hard, unfeeling, unsympathetic, hardened)
1
unemotional(adjective, hard, unfeeling, unsympathetic, prepared)
1
unfeeling(adjective, hard, unsympathetic, hardened, unbending)
1
unrepenting(adjective, hard, unfeeling, unsympathetic, prepared)
1
unsubmissive(adjective, hard, unfeeling, unsympathetic, prepared)
0
apathetic(adjective, hard, unfeeling, unsympathetic, hardened)
0
blind to(expression, adjective, hard, unfeeling, unsympathetic)
0
careless(adjective, hard, unfeeling, unsympathetic, hardened)
0
casehardened(adjective, hard, unfeeling, unsympathetic, hardened)
0
cold(adjective, hard, unfeeling, unsympathetic, hardened)
0
cold-blooded(adjective, hard, unfeeling, unsympathetic, hardened)
For more, visit Hard-as-nails on Power Thesaurus
15 years ago|110 views|share |citing 
APASmart Define. (2011). hard-as-nails thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/hard-as-nails/thesaurus/synonyms
ChicagoSmart Define. 2011. "hard-as-nails thesaurus" https://smartdefine.org/hard-as-nails/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2011, hard-as-nails thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/hard-as-nails/thesaurus/synonyms>.
MLASmart Define. "hard-as-nails thesaurus" 24 May 2011. Web. 1 October 2026. <https://smartdefine.org/hard-as-nails/thesaurus/synonyms>