insolent vs snotty-nosed

insolent and snotty-nosed both are adjectives.

Word	Noun	Adjective	Verb	Adverb
insolent	No	Yes	No	No
snotty-nosed	No	Yes	No	No

As adjectives, insolent and snotty-nosed are synonyms defined as:

Other synonyms of insolent include flip, impudent.

insolent (adjective)	snotty-nosed (adjective)
marked by casual disrespect	marked by casual disrespect
unrestrained by convention or propriety