Synonyms|555Antonyms|160|Broader|1Narrower|0Related|403

118 entries under hard topic. ×

2
unflexible(adjective, firm, solid, stiff)
2
unsparing(adjective, strong, tough, severe)
2
unsupple(adjective, firm, solid, stiff)
1
annealed(adjective, firm, solid, tense)
1
astringent(adjective, strong, tough, severe)
1
authoritarian(adjective, strong, tough, severe)
1
benumbed(adjective, firm, solid, tense)
1
bitter(adjective, strong, tough, severe)
1
brittle(adjective, firm, solid, tense)
1
by the book(expression, adjective, idiom, strong)
1
cemented(adjective, firm, solid, tense)
1
chilled(adjective, firm, solid, tense)
1
congealed(adjective, firm, solid, tense)
1
contracted(adjective, firm, solid, tense)
1
cruel(adjective, strong, tough, severe)
1
disciplinary(adjective, strong, tough, severe)
1
dyed-in-the-wool(adjective, set, strong, tough)
1
frowning(adjective, strong, tough, severe)
1
frozen(adjective, firm, solid, tense)
1
graceless(adjective, firm, solid, tense)
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ChicagoSmart Define. 2015. "steely thesaurus" https://smartdefine.org/steely/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, steely thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/steely/thesaurus/synonyms>.
MLASmart Define. "steely thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/steely/thesaurus/synonyms>