flabbergastingly

flabbergastingly adverb: surprisingly, astonishingly or amazingly.

Adverb

flabbergastingly (comparative more flabbergastingly, superlative most flabbergastingly)

Surprisingly, astonishingly or amazingly
- It was a good date but the food at the restaurant was so flabbergastingly excellent I could barely think of anything else to talk about.
- He had said he would clean his room a thousand times before, but this time he actually did it, and flabbergastingly well too.

The critical wonderment over the at times curious unevenness of Monckton Hoffe's dramatic writing, over the startlingly good suddenly crossed with the flabbergastingly bad, and vice versa...1971, George Jean Nathan, Materia critica, Fairleigh Dickinson Univ Press, page 115:
As I write, the flabbergastingly fecund David Crystal has just published another book in the tradition, The Fight for English: How Language Pundits Ate, Shot, and Left.2009, Jason McWhorter, Our Magnificent Bastard Tongue: The Untold History of English, Penguin:

comparative	more flabbergastingly
superlative	most flabbergastingly

From flabbergasting + -ly.

What does flabbergastingly mean?: Flabbergastingly means surprisingly, astonishingly or amazingly.
How do you use flabbergastingly in a sentence?: The critical wonderment over the at times curious unevenness of Monckton Hoffe's dramatic writing, over the startlingly good suddenly crossed with the flabbergastingly bad, and vice versa...
What part of speech is flabbergastingly?: Flabbergastingly is an adverb.

Adapted from Wiktionary: flabbergastingly (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this entry: “flabbergastingly.” Word.ws, https://word.ws/flabbergastingly. Based on Wiktionary, CC BY-SA 4.0.