flabbergastedly

comparative more flabbergastedly · superlative most flabbergastedly

1. In a flabbergasted manner.

   I didn't care that Mum was flabbergastedly uttering a very great number of Sophie Margaret Catriona Seades.

   2013, Clementine Beauvais, Sesame Seade Mysteries 2: Gargoyales Gone AWOL, Hachette Children's, →ISBN

   2 more examples

   She returned my stare and said, "Irene likes him, and that is more to the point." I shook my head flabbergastedly.

   1903, Charles Battell Loomis, Cheerful Americans, page 18

   to which I could only flabbergastedly say that whoever was doing the throwing must've had a heck of an arm, because the lake was about five miles away, which made them laugh.

   2014, Craig Harline, Way Below the Angels: The Pretty Clearly Troubled But Not Even Close to Tragic Confessions of a Real Live Mormon Missionary, Wm. B. Eerdmans Publishing, →ISBN, page 232