An Encylopedia Britannica Company

flabbergast

1 ENTRIES FOUND:
flabbergast /ˈflæbɚˌgæst/ Brit /ˈflæbəˌgɑːst/ verb
flabbergasts; flabbergasted; flabbergasting
flabbergast
/ˈflæbɚˌgæst/ Brit /ˈflæbəˌgɑːst/
verb
flabbergasts; flabbergasted; flabbergasting
Britannica Dictionary definition of FLABBERGAST
[+ object]
: to shock or surprise (someone) very much
often used as (be) flabbergasted

— flabbergasting

adjective [more flabbergasting; most flabbergasting]