161 entries under tough topic. ×

1
bullhead(adjective, mean, hard, harsh)
1
bullheaded(adjective, strong, hard, severe)
1
by the book(expression, adjective, idiom, strong, hard)
1
calm(adjective, sensible, restrained, rational)
1
dead set(expression, adjective, severe, firm)
1
deadpan(adjective, rational, straightforward, detached)
1
disciplinary(adjective, strong, hard, severe)
1
dour(adjective, hard, severe, sharp)
1
draconian(adjective, severe, firm, harsh)
1
dry(adjective, rational, straightforward, sober)
1
dyed-in-the-wool(adjective, strong, hard, severe)
1
factual(adjective, reasonable, sensible, rational)
1
feasible(adjective, reasonable, sensible, rational)
1
flat(adjective, severe, rational, straightforward)
1
flinty(adjective, strong, hard, severe)
1
forbidding(adjective, person, strong, hard)
1
frowning(adjective, strong, hard, severe)
1
grim(adjective, strong, hard, severe)
1
hang-tough(adjective, strong, hard, severe)
1
hard-core(adjective, strong, hard, severe)
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APASmart Define. (2016). hard-boiled thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/hard-boiled/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-boiled thesaurus" https://smartdefine.org/hard-boiled/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, hard-boiled thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/hard-boiled/thesaurus/synonyms>.
MLASmart Define. "hard-boiled thesaurus" 23 March 2016. Web. 30 September 2026. <https://smartdefine.org/hard-boiled/thesaurus/synonyms>