Related Clues:

• Like a sock without a mate
• Like half of all integers
• OutrГ©
• Not matching
• A bit off
• Hallowe'en golfer Mike?
• Far from conventional
• Like all but one prime number
• Like most primes
• Sort of peculiar
• "Hmm. . ."
• Somewhat strange
• 'Huh!'
• Like 123, but not 456
• Flaky