Synonyms of hardness in English:

hardness


See definition of hardness

noun

1‘the hardness of the ground’

SYNONYMS
firmness, solidity, stiffness, rigidity, denseness, inflexibility, inelasticity, resistance
ANTONYMS

softness

2‘there was a core of calculating hardness to this man’

SYNONYMS
hard-heartedness, heartlessness, cold-heartedness, lack of compassion, lack of feeling, lack of sentiment, callousness, unkindness, flintiness, steeliness
harshness, severity, strictness, sternness, toughness
ANTONYMS

compassion, kindness