(uncountable) The state of being uncivil; lack of courtesy; rudeness in manner.
1668, David Lloyd, Memoires of the Lives, Actions, Sufferings, and Deaths of those Noble, Reverend, and Excellent Personages that suffered by Death, Sequestration, Decimation, and otherwise for the Protestant Religion, London: Samuel Speed, “The Life and Death of Robert Berkley,” p. 96,
Beat on proud Billows, Boreas blow,
Swell curled Waves, high as Jove’s roof,
Your incivility doth show,
That Innocence is tempest proof.
(countable) Any act of rudeness or ill-breeding.
When my poor Sidebottom was alive, if there had been any unpleasantness between us during the day … I have shaken him at night to wake him up, that he might receive my pardon for an incivility said or done.
(uncountable) Lack of civilization; a state of rudeness or barbarism.