contumely vs discourtesy

contumely and discourtesy both are nouns.

Word	Noun	Adjective	Verb	Adverb
contumely	Yes	No	No	No
discourtesy	Yes	No	No	No

As nouns, discourtesy is a hypernym of contumely; that is, discourtesy is a word with a broader meaning than contumely:

Other hypernyms of contumely include disrespect.

contumely (noun)	discourtesy (noun)
a rude expression intended to offend or hurt	a lack of politeness; a failure to show regard for others; wounding the feelings of others
	a manner that is rude and insulting
	an expression of lack of respect