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Definition of flabbergasted
flabbergasted
/ˈflæb.ɚˌɡæs.tɪd/
flab · ber · gast · ed
Past Simple:flabbergasted
•Past Participle:flabbergasted
•Present Participle:flabbergasting
flabbergasted Lexical Profile
CEFR
C1
Grade
8
Tier
2
Usage
Top 10k
Syllables
4
flabbergasted Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Greatly surprised, astonished, or overcome with bewilderment.
Example
"She was completely flabbergasted when the committee announced that her research proposal had won the grand prize."
Synonyms
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View all antonyms for flabbergasted• verb
1
To surprise or overwhelm someone with great astonishment (past tense and past participle of flabbergast).
Example
"The sudden resignation of the chief executive flabbergasted the entire board of directors."
Synonyms
View all synonyms for flabbergasted Antonyms
View all antonyms for flabbergasted• Nearby Words
Word Origin & Etymology
First recorded in the late 18th century as fashionable slang, the base verb 'flabbergast' is likely a whimsical blend of 'flabby' (or dialectal 'flabber', meaning to flap) and 'aghast'.
Cite this Entry
Wordmom. (2026). Definition of Flabbergasted. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/flabbergasted