Related Clues:

• Irregular
• Anomalous
• Odd
• Unusual
• Not as expected
• Out of the ordinary
• Not run-of-the-mill
• Nonconforming
• Abnormal
• Not ordinary
• Outside the norm
• Not characteristic
• Abnormal, aberrent.
• Deviating from what is usual or common
• Not conforming to a norm or average