- (postpositive) overcome with amazement or horror
WordReference Random House Learner's Dictionary of American English © 2020
a•ghast /əˈgæst/USA pronunciation adj.WordReference Random House Unabridged Dictionary of American English © 2020
- [be + ~] filled with sudden fear, horror, or amazement:was aghast after witnessing the accident.
a•ghast (ə gast′, ə gäst′),USA pronunciation adj.
- struck with overwhelming shock or amazement;
filled with sudden fright or horror:They stood aghast at the sight of the plane crashing.
- Gmc causative *gaistjan; see ghost
- Middle English agast frightened, past participle of agasten, equivalent. to a- a-3 + gasten, Old English gǣstan to frighten, earlier *gāstjan 1225–75
Collins Concise English Dictionary © HarperCollins Publishers::
aghast /əˈɡɑːst/ adj
'aghast' also found in these entries (note: many are not synonyms or translations):