1. in a way that causes loss of physical sensation or feeling
2. in an extremely or overwhelmingly intense manner

Examples

• The cold wind was numbingly harsh against her face.
• His fingers were numbingly frozen after hours in the snow.
• The lecture was numbingly boring, putting half the class to sleep.
• The statistics were numbingly complex to understand.
• The repetitive task became numbingly monotonous.
• The noise from the construction was numbingly loud.
• The medication made her numbingly drowsy.