104 entries under extreme topic. ×

3
great(adjective, strong, severe, firm, powerful)
3
precious(adjective, fancy, extraordinary, counterfeit)
3
prohibitive(adjective, tough, extraordinary, grim)
3
stratospheric(adjective, big, usual, unreasonable)
2
astronomical(adjective, extraordinary, expensive, high-priced)
2
boundless(unreasonable, extravagant, excessive, unwarranted)
2
exaggerated(adjective, unreasonable, extravagant, extra)
2
extraordinary(adjective, unusual, strange, odd)
2
intemperate(unreasonable, improper, extravagant, senseless)
2
out of bounds(expression, idiom, improper, senseless)
2
peremptory(improper, affected, senseless, severity)
2
rich(adjective, fancy, extraordinary, high)
2
sky-high(adjective, fancy, big, usual, unreasonable)
2
too much(expression, improper, senseless, unwarranted)
1
absonant(adjective, unreasonable, improper, extravagant)
1
costing an arm and a leg(improper, senseless, excessive, arbitrary)
1
disproportionate(unreasonable, extravagant, excessive, unwarranted)
1
dissipated(unreasonable, extravagant, excessive, unwarranted)
1
dizzying(adjective, unreasonable, high, extravagant)
1
extra(unreasonable, extravagant, excessive, unwarranted)
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APASmart Define. (2015). stiff thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/stiff/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiff thesaurus" https://smartdefine.org/stiff/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, stiff thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/stiff/thesaurus/synonyms>.
MLASmart Define. "stiff thesaurus" 24 December 2015. Web. 27 September 2026. <https://smartdefine.org/stiff/thesaurus/synonyms>