Synonyms|585Antonyms|171|Broader|15Narrower|9Related|487
3
cruelness
3
fastness(noun, support, control, change, strength)
3
flintiness
3
gracelessness
3
induration
3
invulnerability
3
knottiness(noun, difficulty)
3
laboriousness(difficulty, toughness)
3
mercilessness
3
numbness(noun, insensitivity)
3
obdurateness
3
onerousness(noun, difficulty)
3
oppression(noun, misery, hardship, cruelty, domination)
3
ordeal(noun, difficulty, severity, harshness, conformity)
3
puritanism(severity, strictness, sternness)
3
relentlessness(noun, harshness, sternness)
3
rigidness
3
rigourousness
3
robustness(strength, toughness, solidity)
3
savagery(noun, malevolence)
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APASmart Define. (2015). hardness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/hardness/thesaurus/synonyms
ChicagoSmart Define. 2015. "hardness thesaurus" https://smartdefine.org/hardness/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, hardness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/hardness/thesaurus/synonyms>.
MLASmart Define. "hardness thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/hardness/thesaurus/synonyms>