brattiness vs callowness

brattiness and callowness both are nouns.

Word	Noun	Adjective	Verb	Adverb
brattiness	Yes	No	No	No
callowness	Yes	No	No	No

As nouns, callowness is a hypernym of brattiness; that is, callowness is a word with a broader meaning than brattiness:

brattiness: The state or condition of acting like a brat, being unruly and impolite.
callowness: lacking and evidencing lack of experience of life

Other hypernyms of brattiness include jejuneness, juvenility.

brattiness (noun)	callowness (noun)
The state or condition of acting like a brat, being unruly and impolite.	lacking and evidencing lack of experience of life