Related Clues:

• Straight-laced and then some
• Stiffly formal
• Arrogant
• No-nonsense
• Feeling superior
• Overly prim and proper
• Fastidious to a fault
• Of sedate character
• Proper and then some
• Tame
• Prim and reserved
• Proper to a fault
• Puritanical
• Cocky
• Overly proper