General Opposites:
* Abnormal: This is the most common and straightforward opposite, meaning "not normal" or "deviating from the norm."
* Atypical: This emphasizes the unusual nature of something, suggesting it doesn't conform to the typical pattern.
* Unnatural: This implies that something is not in accordance with the natural order or expected course of events.
* Paranormal: This specifically refers to phenomena beyond the realm of normal experience, often associated with the supernatural.
More Specific Opposites:
* Subnormal: This implies a condition below the expected or average level.
* Supranormal: This suggests something exceeding the normal or expected level.
* Anomalous: This refers to something that deviates from the expected or standard pattern, often in a way that is difficult to explain.
* Aberrant: This indicates a significant deviation from the normal or expected path, often implying something harmful or undesirable.
The best prefix to use will depend on the specific nuance you want to convey in your writing.