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flabbergast Synonyms
Another word for flabbergast
Choosing another word for flabbergast that fits your sentence is easier when synonyms and similar words are paired with an exact verb definition and ranked by match strength.
• verb (Context 1)
To surprise or astonish someone greatly, leaving them utterly speechless or overwhelmed.
Usage Example
"The sudden announcement of the company's merger continued to astonish even the most seasoned industry analysts."
Strongest
astonish
astound
dumbfound
Strong
stagger
stun
stupefy
amaze
floor
take aback
bewilder
Opposites of flabbergast
The opposite of flabbergast shifts depending on context. Common opposites include:
underwhelm
bore
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Flabbergast. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/flabbergast