gobsmackingly

adv

1. (Commonwealth, Ireland, UK, slang)Astonishingly; amazingly.

   “1992, Mark Lewisohn, Root Into Europe, BBC Guide to Comedy Astonishingly blunt, completely oblivious to the fact that his opinions and rudeness might be alien or offensive to others, and gobsmackingly ignorant of any other point of view.”

   “The AAA company Millie’s suing is run by a crooked mogul played by Taika Watiti, doing a gobsmackingly awful caricature of modern tech-bro arrogance.”

   ““September was, in my professional opinion as a climate scientist, absolutely gobsmackingly bananas,” said Zeke Hausfather, at the Berkeley Earth climate data project.”