A rude act.
Lack of courtesy; rudeness.
Action or form of speech deliberately intended to be rude; (countable) a particular act or statement having this effect.
Something causing disease or injury to the body or bodily processes; the injury so caused.
Something that causes offence (for example, by being of an unacceptable quality).
To be insensitive, insolent, or rude to (somebody); to affront or demean (someone).