flabbergastment means synonym of flabbergast (“overwhelming shock or surprise”). Lexicurio rates it Rare gem — a strength score of 82 out of 100.
noun
- Synonym of flabbergast (“overwhelming shock or surprise”)“It was the Wells-Fargo coach, the Deadwood coach of Buffalo Bill's Wild West, the coach from which steps that pulchritudinous schoolmarm from the East to the flabbergastment of gawping cowpokes.”