flabbergastingly

Etymology
From.

Adverb

 * 1) Surprisingly, astonishingly or amazingly
 * 2) * 1922, George Jean Nathan, Henry Louis Mencken. The smart set: a magazine of cleverness, Volume 69. Ess Ess Pub. Co. page 49.
 * (There) must be sympathy in the back parlor if it is to get its message across, and that this flabbergastingly important message... is as follows:...
 * 1) * 1922, George Jean Nathan, Henry Louis Mencken. The smart set: a magazine of cleverness, Volume 69. Ess Ess Pub. Co. page 49.
 * (There) must be sympathy in the back parlor if it is to get its message across, and that this flabbergastingly important message... is as follows:...