1. in a manner that is shocking, momentous, or has a profound impact; in a way that shakes or disturbs fundamentally
Usage: informal; often used for emphasis or dramatic effect

Examples

• The announcement was earthshakingly important to the entire industry.
• Her discovery was earthshakingly revolutionary for modern medicine.
• The news hit the community earthshakingly hard.
• The scandal was earthshakingly damaging to his reputation.
• The technology changed the market earthshakingly.