968 entries under adjective topic. ×

9
callous(set, strong, hard, severe)
9
clumsy(difficult, awkward, tasteless, unsophisticated)
9
compact(set, hard, tough, firm)
9
extravagant(fancy, severe, extraordinary, unreasonable)
9
losel(nothingness, zero, nonentity)
9
rat(nothingness, zero, nonentity)
8
constrained(characteristic, awkward, affected, strained)
8
cool(clear, pleasant, sharp, bright)
8
dead(dull, late, behind, insentient)
8
dirt(noun, nothingness, zero, nonentity)
8
distant(tough, correct, firm, cold)
8
dogmatic(manner, obstinacy)
8
dry
8
inordinate(fancy, severe, unreasonable, extreme)
8
set in stone(determined, resolute, obstinate, uncompromising)
8
squiffy
8
stringent(hard, severe, rough, difficult)
8
tiddly
8
unconscionable(severe, big, usual, unreasonable)
8
vigorous(strong, pleasant, severe, solid)
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APASmart Define. (2015). stiff thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, stiff thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>.
MLASmart Define. "stiff thesaurus" 24 December 2015. Web. 24 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms>