Synonyms of hardnesses
- 2 Syllables
- aplomb, fastness, firmness
- 3 Syllables
- backbone, cohesion, constancy, balance
- 4 Syllables
- adherence, assurance, endurance, permanence, establishment, maturity, solidity, security
- 5 Syllables
- durability, perseverance, immobility, resoluteness, determination
- 6 Syllables
- immovability, dependability