Part of speech: Noun
a manner that is rude and insulting
Categories: Manner, Personal manner
Part of speech: Noun
a lack of politeness; a failure to show regard for others; wounding the feelings or others
Categories: Behavior, Behaviour, Conduct, Doings
Offence, Discourtesy, Offensive activity, Rudeness, Disrespect
dis – A related word in the same word family.
courtesy – A related word in the same word family.
Technical fields like law and medicine preserve Latin and Greek because precision matters more than simplicity.