n.
1.
Roughness, ruggedness, unevenness.
2.
Acrimony, tartness, sourness, sharpness, causticity, corrosiveness.
3.
Harshness, moroseness, sternness, severity, virulence, crabbedness, bitterness, churlishness, acerbity, sullenness, ill-temper See acrimony .