Gentility is a related term of politeness.
As nouns the difference between gentility and politeness
is that gentility is (uncountable) the state of being elegant, genteel, having good breeding, or being socially superior while politeness is the quality of being polite.
gentility
English
Noun
(uncountable) The state of being elegant, genteel, having good breeding, or being socially superior.
The upper classes, the gentry.
politeness
Noun
(en-noun)
The quality of being polite.
Synonyms
* (the act of being polite): affability, civility, courtliness, etiquette
Antonyms
* (the act of being polite): impoliteness, rudeness