hardness
noun
[ ˈhɑːdnəs ]
• the quality or condition of being hard.
• "people complained about the hardness of the chairs"
Similar:
firmness,
solidity,
stiffness,
rigidity,
denseness,
inflexibility,
inelasticity,
resistance,
hard-heartedness,
heartlessness,
cold-heartedness,
lack of compassion,
lack of feeling,
lack of sentiment,
callousness,
unkindness,
flintiness,
steeliness,
harshness,
severity,
strictness,
sternness,
toughness,
