Synonyms of impenetrability
- 2 Syllables
- thickness, body, tightness, firmness
- 3 Syllables
- density, concretion, heaviness, quantity, densities, compactness, closeness, fixedness, denseness, crowdedness, frequency
- 4 Syllables
- consistency, solidity, massiveness
- 5 Syllables
- substantiality, impliability
- 6 Syllables
- impermeability, inelasticity