Pronunciation
- IPA: /ˈflæbəɡɑːst/ (UK); /ˈflæbɚˌɡæst/ (US)[1]
Etymology
It is of unknown or uncertain origin.[2][3][4] It may come from a dialect, since it was noted as a Sussex word in 1823,[4] and it may be an arbitrary formation from flabby or flapper and aghast.[5][4][6] Barnhart rejects a link with Scots flabrigastit “worn out”, which appears only later.[5]
Earliest recorded meaning
To astonish utterly, leaving someone unable to speak or act (1772).[7][5][3][4]
Semantic evolution
In 1772 a magazine mentioned flabbergasted, together with bored, as a new fashionable word.[4] The meaning has stayed the same, and the past participle flabbergasted is the commonest form.[4][1] The noun flabbergastation is recorded in 1856.[7]
Timeline
Modern meaning
Verb
- To overwhelm with surprise or bewilderment; to astound.
Word family
- flabbergastingly
- flabbergaster
Related words
- aghast
- flabby
Usage notes
Random House lists amaze, astonish, stagger, nonplus and confound as synonyms.[6]
References
- ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin
- ^ a b c Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
- ^ a b c d e f g h Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d Barnhart, Robert K., ed. (1995), The Barnhart Concise Dictionary of Etymology, New York: HarperCollins
- ^ a b Random House Webster's Unabridged Dictionary (1999), 2nd ed., New York: Random House
- ^ a b c d Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
Cite this entry
“Flabbergast.” Etymologically, 15 Oct. 2026, etymologically.com/en/flabbergast. Accessed 15 Oct. 2026.
Last edited on . ·