bigheaded

Từ điển WordNet v3.1 - WordNet Dictionary

adjective

(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:
persnickety, 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)