3
invigorated(verb, strengthened)
3
merciless(adjective, person, hard, tough, severe)
3
mulish(adjective, determined, fixed, resolute, stubborn)
3
nonchalant(adjective, cool, indifferent, blank, aloof)
3
old(adjective, familiar, skilled, experienced, established)
3
opinionated(adjective, determined, fixed, resolute, stubborn)
3
pattern(adjective, exemplary)
3
relentless(adjective, hard, tough, harsh, cold)
3
solid(adjective, set, strong, hard, tough)
3
stern(adjective, determined, resolute, uncompromising, unshakeable)
3
unblushing(adjective, rude, corrupt, bold, improper)
3
veteran(adjective, skilled, experienced, seasoned)
3
willful(adjective, determined, fixed, resolute, stubborn)
2
acclimated
2
anesthetized(adjective, hard, tough, severe, cruel)
2
arrant(adjective, rude, corrupt, bold, improper)
2
blank(adjective, person, feelings, unemotional, emotions)
2
blunt(adjective, insensitive)
2
brassy(adjective, rude, corrupt, bold, improper)
2
caked(verb, adjective, set, firm, solid)
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APASmart Define. (2016). hardened thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hardened/thesaurus/synonyms
ChicagoSmart Define. 2016. "hardened thesaurus" https://smartdefine.org/hardened/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, hardened thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hardened/thesaurus/synonyms>.
MLASmart Define. "hardened thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/hardened/thesaurus/synonyms>