n.
1.
Unevenness, ruggedness.
2.
Harshness, rudeness, coarseness, incivility, gruffness, bluntness, impoliteness.
3.
Acerbity, unsavoriness, astringency, harshness.
4.
Storminess, boisterousness, tempestuousness, inclemency, violence.
5.
Violence, severity.
6.
Inelegance, coarseness.
7.
Discord.