brat vs scalawag

brat and scalawag both are nouns.

Word	Noun	Adjective	Verb	Adverb
brat	Yes	No	No	No
scalawag	Yes	No	No	No

As nouns, scalawag is a hypernym of brat; that is, scalawag is a word with a broader meaning than brat:

Other hypernyms of brat include imp, monkey, rapscallion, rascal, scallywag, scamp.

brat (noun)	scalawag (noun)
a very troublesome child	one who is playfully mischievous
a small pork sausage	a deceitful and unreliable scoundrel
	a white Southerner who supported Reconstruction policies after the American Civil War (usually for self-interest)