1.(used colloquially) overly conceited or arrogant - "a snotty little scion of a degenerate family"-Laurent Le Sage - they're snobs--stuck-up and uppity and persnickety • Syn: bigheaded, snooty, snot-nosed, snotty, stuck-up, too big for one's breeches, uppish • Similar to: proud • Derivationally related forms: uppishness (for: uppish), snot (for: snotty), snoot (for: snooty) 2. characterized by excessive precision and attention to trivial details - a persnickety job - a persnickety school teacher • Syn: pernickety • Similar to: fastidious