1. in a way that is beyond what is natural or normal; mysteriously or strangely
Usage: formal; often used to describe something that seems to defy natural explanation
2. to an unusual or remarkable degree; exceptionally
Usage: formal

Examples

• The child displayed a preternaturally advanced understanding of mathematics for her age.
• The old house felt preternaturally cold, as if no amount of heating could warm it.
• He possessed a preternaturally calm demeanor even during the crisis.
• The silence in the abandoned town was preternaturally eerie.
• She seemed preternaturally aware of what others were thinking.
• The sky turned a preternaturally green color just before the storm arrived.