snooty (adj.)

• arrogant
• clannish
• cliquish
• condescending
• contemptuous
• contumelious
• disdainful
• exclusive
• haughty
• patronizing
• potty
• priggish
• scornful
• sneering
• sniffy
• snobbish
• snobby
• snotty
• supercilious
• withering