flabbergasted

Definitions

Greatly surprised or astonished.

Utterly bewildered or astounded.

Examples

I was absolutely flabbergasted when I heard the news about the surprise promotion.

The magician's final trick left the entire audience completely flabbergasted.

Synonyms

astonished astounded dumbfounded amazed shocked stunned speechless

Antonyms

unmoved expectant composed indifferent prepared unimpressed calm