Definition of "gobsmackingly"

gobsmackingly

adverb
comparative more gobsmackingly, superlative most gobsmackingly
1. (slang, British) Astonishingly; amazingly.
  Quotations
  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.
  1992, Mark Lewisohn, Root Into Europe, BBC Guide to Comedy
  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.
  2021 August 6, A. A. Dowd, “The Ryan Reynolds action-comedy Free Guy is a Truman Show for the Fortnite age”, in The A.V. Club‎
  ‘Gobsmackingly bananas’: scientists stunned by planet’s record September heat. [title]
  2023 October 5, Damian Carrington, “‘Gobsmackingly bananas’: scientists stunned by planet’s record September heat”, in The Guardian‎