Related Clues:

• Tame
• Prim and reserved
• Not at all with it
• Nerdy, perhaps
• Not very cool
• Self-restrained
• Not showy
• Fancy-free?
• Not faddish
• Not groovy
• Not adventurous
• Hardly cutting-edge
• Stiffly proper
• Hardly capricious
• Far from frivolous