flabbergast

This word conveys a state of extreme astonishment that borders on shock, often leaving the person speechless or paralyzed. It carries a slightly whimsical or exaggerated tone compared to the more neutral surprise, making it common in storytelling or expressive conversation rather than in formal academic writing. Because it describes a total loss of composure, it is typically used in contexts where the news is unexpected, absurd, or overwhelming. It suggests a momentary cognitive freeze where the brain cannot immediately process the information received.