gobsmackingly

== English == === Etymology === From gobsmacking +‎ -ly. === Pronunciation === === Adverb === gobsmackingly (comparative more gobsmackingly, superlative most gobsmackingly) (slang, UK, Ireland, Commonwealth) 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.