flabbergast.
To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner.
Meaning & usage
To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner.
He was flabbergasted to find that his work had been done for him before he began.
Her stupidity flabbergasts me, and I have to force myself to keep a straight face while she explains her beliefs.
Where this word comes from
The origin of the verb is uncertain; possibly dialectal (Suffolk), from flabby or flap (“to strike”) + aghast. The word may be related to Scottish flabrigast (“to boast”) or flabrigastit (“worn out with exertion”). The noun is derived from the verb.
An awkward person.
Overwhelming confusion, shock, or surprise.
His flabbergast was so great he couldn’t even come up with a plausible answer.
Where this word comes from
The origin of the verb is uncertain; possibly dialectal (Suffolk), from flabby or flap (“to strike”) + aghast. The word may be related to Scottish flabrigast (“to boast”) or flabrigastit (“worn out with exertion”). The noun is derived from the verb.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.