Related Clues:

• "The ___ Couple"
• Not exactly customary
• Ingenuous exclamation
• Roulette play
• Unexpected
• Perplexing
• 'Aw, shucks!'
• Like an unmatched sock
• "That's strange"
• Puzzling
• "Jiminy!"
• "Oh wow!"
• Screwy
• "Wow!"
• Uneven