Which definition best matches the word abnormal?

• A. Not what is considered to be normal
• B. Not unusual or typical
• C. Strange
• D. Normal

Answer: (C)

Abnormal means deviating from what is normal or expected, and in everyday use it carries a sense of oddness or being out of the ordinary. The best match here is “strange” because it is a direct, common synonym that conveys that sense of something not fitting the usual pattern.

The other ideas are less precise as single-word expressions: describing it as “not what is considered to be normal” is a correct notion but longer and less natural as a synonym, while saying it is “not unusual or typical” would imply normal, and “normal” is the opposite of abnormal.