1
propped(verb, strengthened)
1
rigidified
1
ruffianly
1
sclerotic
1
shatterproof
1
sinewy
1
sophisticated
1
soulless(adjective, hard, careless, indifferent, cruel)
1
spiritless(adjective, hard, careless, indifferent, cruel)
1
stiff(adjective, hard, careless, indifferent, cruel)
1
stony(adjective, hard, careless, indifferent, cruel)
1
sunbaked
1
thickened
1
tightened
1
torpid(adjective, hard, careless, indifferent, cruel)
1
toughening
1
toughens
1
unaffected(adjective, hard, careless, indifferent, cruel)
1
unashamed(adjective, hard, unfeeling, unsympathetic, hardened)
1
unbending(adjective, hard, careless, indifferent, cruel)
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APASmart Define. (2015). toughened thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toughened/thesaurus/synonyms
ChicagoSmart Define. 2015. "toughened thesaurus" https://smartdefine.org/toughened/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, toughened thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toughened/thesaurus/synonyms>.
MLASmart Define. "toughened thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/toughened/thesaurus/synonyms>