67 entries under toughened topic. ×

1
unimpressionable(adjective, hard, careless, indifferent, cruel)
1
unrepenting(adjective, hard, tough, unfeeling, unsympathetic)
1
unsubmissive(adjective, hard, unfeeling, unsympathetic, hardened)
1
unsusceptible(adjective, hard, careless, indifferent, cruel)
0
casehardened(hard, unfeeling, unsympathetic, hardened)
0
cynical(adjective, hard, unfeeling, unsympathetic, hardened)
0
hard-edged(adjective, cynical, hard-boiled, hard-bitten)
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APASmart Define. (2016). uncompassionate thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/uncompassionate/thesaurus/synonyms
ChicagoSmart Define. 2016. "uncompassionate thesaurus" https://smartdefine.org/uncompassionate/thesaurus/synonyms (accessed October 2, 2026).
HarvardSmart Define 2016, uncompassionate thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/uncompassionate/thesaurus/synonyms>.
MLASmart Define. "uncompassionate thesaurus" 31 March 2016. Web. 2 October 2026. <https://smartdefine.org/uncompassionate/thesaurus/synonyms>