incivility(n = noun.attribute) - deliberate discourtesy;
is a kind of discourtesy, rudeness
Antonym: civility
1. The quality or state of being uncivil; lack of courtesy; rudeness of manner; impoliteness. Shak. Tillotson. [1913 Webster]
2. Any act of rudeness or ill breeding. [1913 Webster]
"Uncomely jests, loud talking and jeering, which, in civil account, are called indecencies and incivilities." [1913 Webster]
3. Lack of civilization; a state of rudeness or barbarism. Sir W. Raleigh.
incivility, n. (pl. -ies)
1 rudeness, discourtesy.
2 a rude or discourteous act.
Etymology:
F incivilit{eacute} or LL incivilitas (as IN-(1), CIVILITY)