flabbergasted
flab·ber·gas·ted
adjective
1.
as if struck dumb with astonishment and surprise
- “a circle of policement stood dumbfounded by her denial of having seen the accident”
- “the flabbergasted aldermen were speechless”
- “was thunderstruck by the news of his promotion”
Origin
Past tense of flabbergast.
Phrases
- one's flabber is gasted
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.