1. in a way that cannot be done or achieved
2. to an extreme degree; extremely
Usage: informal

Examples

• The task seemed impossibly difficult for a beginner.
• She was impossibly tall for her age.
• The deadline was impossibly short given the scope of work.
• He remained impossibly calm during the crisis.
• The puzzle was impossibly complex to solve in one sitting.
• The mountain peak looked impossibly high from the valley.
• She spoke impossibly fast during her presentation.