Antonyms of adj snotty-nosed

1 sense of snotty-nosed

Sense 1
impudent, insolent, snotty-nosed, flip -- (marked by casual disrespect; "a flip answer to serious question"; "the student was kept in for impudent behavior")

INDIRECT (VIA disrespectful) -> respectful -- (full of or exhibiting respect; "respectful behavior"; "a respectful glance")

Similarity of adj snotty-nosed

1 sense of snotty-nosed

Sense 1
impudent, insolent, snotty-nosed, flip -- (marked by casual disrespect; "a flip answer to serious question"; "the student was kept in for impudent behavior")
       => disrespectful (vs. respectful) -- (exhibiting lack of respect; rude and discourteous; "remarks disrespectful of the law"; "disrespectful in the presence of his parents"; "disrespectful toward his teacher")