38 entries under toughened topic. ×

10
tough(adjective, hard, sharp, sensible, sober)
8
callous(adjective, shrewd, hardened, cynical)
7
hard-boiled(adjective, hard, sound, tough, reasonable)
7
uncaring(adjective, attitude, cold, unemotional, calmness)
7
unfeeling(adjective, tough, impassive, unemotional, hardened)
4
heartless(adjective, cynical, hard-boiled, hard-bitten)
4
obdurate(adjective, hardened, uncompromising, cynical)
3
cruel(adjective, cynical, hard-boiled, hard-bitten)
3
hardened(adjective, cynical, hard-boiled, hard-bitten)
2
cynical(adjective, tough, unfeeling, impassive, unemotional)
2
inured(adjective, cynical, hard-boiled, hard-bitten)
2
unbending(adjective, hardened, cynical, hard-boiled)
2
uncompassionate(adjective, cynical, hard-boiled, hard-bitten)
0
accustomed(adjective, cynical, hard-boiled, hard-bitten)
0
benumbed(adjective, cynical, hard-boiled, hard-bitten)
0
case-hardened(adjective, hardened, cynical, hard-boiled)
0
coldhearted(adjective, cynical, hard-boiled, hard-bitten)
0
contemptuous(adjective, cynical, hard-boiled, hard-bitten)
0
disdainful(adjective, cynical, hard-boiled, hard-bitten)
0
habituated(adjective, cynical, hard-boiled, hard-bitten)
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APASmart Define. (2015). unsentimental thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unsentimental/thesaurus/synonyms
ChicagoSmart Define. 2015. "unsentimental thesaurus" https://smartdefine.org/unsentimental/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unsentimental thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unsentimental/thesaurus/synonyms>.
MLASmart Define. "unsentimental thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unsentimental/thesaurus/synonyms>