Find Antonyms
flabbergast Antonyms
Opposite of flabbergast
Pinning down the opposite of flabbergast requires matching its exact sense, so the antonyms and opposite words below are paired with a clear verb definition and ranked by contrast 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 underwhelm even the most seasoned industry analysts."
Strong
underwhelm
bore
Similar words to flabbergast
Words similar to flabbergast shift depending on context. Common synonyms include:
astonish
astound
dumbfound
stun
stagger
stupefy
amaze
floor
• Nearby Words
Cite this Entry
Wordmom. (2026). Antonyms for Flabbergast. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/flabbergast