Synonyms|585Antonyms|171|Broader|15Narrower|9Related|487
2
tightness(noun, difficulty)
2
vicissitude(severity, harshness, conformity, strictness, conservatism)
2
vigor(noun, strength, toughness, durability, solidity)
2
violence
2
viscosity(firmness, texture, thickness, runniness)
2
viscousness(firmness, texture, thickness, runniness)
2
wearying(noun, difficulty)
1
abusiveness(noun, abuse, misery, suffering, hardship)
1
adherence(noun, support, control, strength, balance)
1
alkalinity
1
aloofness(noun, insensitivity)
1
aplomb(noun, support, control, strength, balance)
1
armor
1
assurance(noun, support, control, strength, balance)
1
astringency
1
atrocity
1
autocracy(noun, abuse, misery, suffering, hardship)
1
backbone(noun, support, control, strength, balance)
1
balance(noun, support, control, strength, firmness)
1
barbarity
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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>