snottier
snot-ti-er
adjective
More arrogant, conceited, or disdainful in an unpleasant, often childish, manner.
"He's become even snottier since his promotion."
Thesaurus
Synonyms: snot-nosed, dirty, unclean, snotty, soiled, bigheaded, stuck-up, snooty, proud, persnickety, uppish, too big for one's breeches