n.
1.
Roughness.
2.
Austerity, rigor, severity, sternness, crabbedness, moroseness, churlishness, ill-temper, asperity, ill-nature, hardness, unkindness, acerbity.
3.
Rudeness, incivility, bluntness, bluffness, ungraciousness, churlishness, gruffness.