Incivility (noun)

1. A lack of politeness, manners or consideration for others.
2. Rude or discourteous behavior or speech.

Origin:

Derived from the latin word "incivilis" meaning "uncivilized".

Examples:

1. The incivility of the customers towards the service staff was a shock to witness.
2. The incivility displayed by the politician towards his opponents was highly unprofessional.
3. The incivility shown by the children towards their elders was a reflection of poor parenting.
4. The incivility demonstrated in the online comments section was disheartening.
5. The incivility at the dinner table was a source of embarrassment to everyone present.