Definition of flabbergast in English:
verb[with object] (usually as adjective flabbergasted) informal
Surprise (someone) greatly; astonish: this news has left me totally flabbergasted
More example sentences
- Well, I'd just like to say that I'm completely flabbergasted and astounded.
- Brian was flabbergasted, but not really surprised, not on a subconscious level.
- He was flabbergasted at the total complexity of the question.
Late 18th century: of unknown origin.
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