Rudeness is behaviour that shows no regard for other people. Sheer rudeness, apologise for the rudeness, tolerate rudeness.
What counts as rude varies enormously by culture and setting: directness that is normal in one country is rudeness in another, which is one of the commonest sources of misunderstanding between speakers of the same language. Note rude, which in older English simply meant rough or uneducated — a rude hut, in rude health; and that rude in British informal use also means indecent.
1nounrudenessBehaviour that shows no regard for others.
“The rudeness of the reply was what everybody remembered.”
rudeness is a lack of regard.
Latin rudis meant raw or unworked — the same root as erudite, which means having had the roughness taken off. Rudeness began as being unpolished rather than being unpleasant.
Middle English
rudenesse
English, today
rudeness
From Middle English rudenesse, equivalent to rude + -ness.
Etymology from Wiktionary, CC BY-SA