1. in a way that causes or involves great disaster, misfortune, or distress

Examples

• The company's investment strategy failed calamitously, resulting in massive losses.
• The experiment went calamitously wrong when the equipment malfunctioned.
• His first attempt at public speaking ended calamitously with complete stage fright.
• The weather turned calamitously bad during the outdoor festival.
• The merger between the two firms proceeded calamitously, destroying shareholder value.
• She calamitously misspoke during the live broadcast, causing widespread confusion.