54 entries under hard topic. ×

19
pure(adjective, complete, simple, sharp)
8
glaring(adjective, severe, sharp, bright)
8
stiff(adjective, firm, utter, rigid)
7
rigid(adjective, severe, firm, solid)
5
firm(adjective, strong, sound, tough)
4
inflexible(adjective, severe, firm, solid)
4
powerful(adjective, strong, sound, tough)
4
sharp(adjective, severe, rough, bright)
3
unbending(adjective, severe, firm, solid)
2
fixed(adjective, strong, sound, tough)
2
indurate(adjective, firm, solid, tense)
2
starched(adjective, firm, solid, stiff)
2
unyielding(adjective, strong, sound, tough)
1
annealed(adjective, firm, solid, tense)
1
arthritic(adjective, firm, solid, tense)
1
benumbed(adjective, firm, solid, tense)
1
brittle(adjective, firm, solid, tense)
1
buckram(adjective, firm, solid, tense)
1
cemented(adjective, firm, solid, tense)
1
chilled(adjective, firm, solid, tense)
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APASmart Define. (2015). stark thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/stark/thesaurus/synonyms
ChicagoSmart Define. 2015. "stark thesaurus" https://smartdefine.org/stark/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, stark thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/stark/thesaurus/synonyms>.
MLASmart Define. "stark thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/stark/thesaurus/synonyms>