47 entries under thickness topic. ×

15
rigidity(noun, strain, pressure, firmness, protection)
11
hardness(noun, firmness, protection, severity, security)
9
inflexibility(noun, firmness, protection, severity, security)
8
toughness(noun, difficulty, firmness, protection, security)
6
inelasticity(noun, protection, security, rigidity, hardness)
6
solidity(noun, firmness, protection, security, stability)
4
callousness(noun, roughness, hardness, unevenness)
2
abrasiveness(noun, roughness, unevenness)
2
density(noun, protection, security, rigidity, hardness)
2
durability(noun, firmness, protection, security, toughness)
2
heaviness(density, depth, impermeability, width)
2
impliability(noun, protection, security, rigidity, hardness)
2
resistance(noun, firmness, protection, security, toughness)
2
roughness(noun, quality, feeling, touch, character)
2
temper(noun, protection, security, rigidity, hardness)
1
coarseness(noun, quality, feeling, touch, character)
1
compactness(noun, protection, security, rigidity, hardness)
1
consistency(noun, quality, feeling, touch, character)
0
bawdiness(roughness, unevenness)
0
boorishness(roughness, unevenness)
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APASmart Define. (2015). stiffness thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/stiffness/thesaurus/synonyms
ChicagoSmart Define. 2015. "stiffness thesaurus" https://smartdefine.org/stiffness/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, stiffness thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/stiffness/thesaurus/synonyms>.
MLASmart Define. "stiffness thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/stiffness/thesaurus/synonyms>