1. in a way that is strange, unusual, or abnormal; oddly or bizarrely
Usage: informal; commonly used to describe unexpected or surprising qualities
2. to an extreme or remarkable degree; surprisingly or remarkably
Usage: informal; often used as an intensifier

Examples

• The weather has been freakishly warm for December.
• She has a freakishly good memory for names and dates.
• It was freakishly quiet in the library that afternoon.
• The plant grew freakishly tall in just a few weeks.
• He's freakishly strong for someone his size.
• The coincidence was freakishly unlikely.
• That storm appeared freakishly fast on the horizon.