Synonym: boggle, bowl over. Similar words: flabbergasted, blabber, jabber, flabby, jabbering, abbey, abbess, stabbed. Meaning: ['flæbə(r)gæst /-gɑːst] 
v. overcome with amazement.
v. overcome with amazement. 
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1. He is flabbergast when he hears that his friend has been accused of murder.
2. He was flabbergasted when we told him how cheap it was.
3. She was too flabbergasted to speak.
4. He was flabbergasted when he heard that his friend had been accused of murder.
5. Everybody was flabbergasted when I announced I was going to emigrate to Australia.
6. Friends were flabbergasted by the news that they'd split up.
7. Studio executives were flabbergasted at the film's extraordinary success.
8. He was flabbergasted how it turned out.
9. I am flabbergasted, having only seen deer as the shyest of animals.
10. I tell you I was flabbergasted and right terrified out of my wits.
11. Doctors said they were flabbergasted at the decision to close the hospital.
12. I was flabbergast after hearing the price she told me.
13. People bursting out flabbergast . On the way to home, his friend said: You are really stupid,(Sentence dictionary) why did you mention the whisky?
14. When they announced her name, the winner just sat there, flabbergasted.
15. When I heard how much money we'd made, I was absolutely flabbergasted.
16. Saying that Joan was taken aback is to put it mildly. She was completely flabbergasted.
17. The delivery men just left the furniture in my front yard. I was flabbergasted.
18. The chattering classes of Blackheath may find his food digestible enough, but my cellmate Paul was flabbergasted.
More similar words: flabbergasted, blabber, jabber, flabby, jabbering, abbey, abbess, stabbed, orgasm, tear gas, smorgasbord, robber, rubber, gibber, jobber, blubber, robbery, rubbery, slobber, gibberish, shrubbery, gas chamber, gastric, rubber-stamp, rubber eraser, undergarment, kindergarten, intergalactic, iceberg, gastronome.