1. the quality or state of being very steep or having a sharp drop; steepness of a cliff or slope
2. the quality or state of acting or done with excessive haste or without careful thought; rashness

Examples

• The precipitousness of the mountain cliff made it dangerous for inexperienced climbers.
• The government was criticized for the precipitousness of its decision to raise taxes without public consultation.
• Hikers were warned about the precipitousness of the trail's descent on the north side.
• His precipitousness in quitting his job without another offer lined up proved to be a costly mistake.
• The precipitousness of the canyon walls created a stunning but treacherous landscape.
• She regretted the precipitousness of her angry response to his comment.