77 entries under hard topic. ×

1
resolute(adjective, close, set, correct)
1
rigid(adjective, set, strong, tough)
1
rigorous(adjective, set, strong, tough)
1
rough(adjective, strong, tough, severe)
1
serious(adjective, strong, tough, severe)
1
severe(adjective, strong, tough, harsh)
1
steadfast(adjective, close, set, correct)
1
steely(adjective, set, strong, tough)
1
stiff(adjective, set, severe, harsh)
1
stiff-necked(adjective, strong, tough, severe)
1
strict(adjective, close, set, strong)
1
stringent(adjective, severe, rigid, tight)
1
tough(adjective, strong, severe, harsh)
1
unbending(adjective, set, strong, tough)
1
unrelenting(adjective, set, strong, tough)
1
unsparing(adjective, strong, tough, severe)
1
unyielding(adjective, set, strong, tough)
0
dense(adjective, strong, tough, sturdy)
0
dogged(resolute, rigid, inflexible, strict)
0
ferric(adjective, strong, tough, sturdy)
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APASmart Define. (2016). dyed-in-the-wool thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/dyed-in-the-wool/thesaurus/synonyms
ChicagoSmart Define. 2016. "dyed-in-the-wool thesaurus" https://smartdefine.org/dyed-in-the-wool/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, dyed-in-the-wool thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/dyed-in-the-wool/thesaurus/synonyms>.
MLASmart Define. "dyed-in-the-wool thesaurus" 29 March 2016. Web. 1 October 2026. <https://smartdefine.org/dyed-in-the-wool/thesaurus/synonyms>