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Synonyms

aghast

American  
[uh-gast, uh-gahst] / əˈgæst, əˈgɑst /

adjective

  1. struck with overwhelming shock or amazement; filled with sudden fright or horror.

    They stood aghast at the sight of the plane crashing.


aghast British  
/ əˈɡɑːst /

adjective

  1. (postpositive) overcome with amazement or horror

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of aghast

1225–75; Middle English agast frightened, past participle of agasten, equivalent to a- a- 3 + gasten, Old English gǣstan to frighten, earlier *gāstjan < Germanic causative *gaistjan; see ghost

Explanation

Would you be aghast, or shocked, to find out that your friends believe in ghosts, or would you share their frightened, or aghast, looks when a floating white being hovers over the campfire? Aghast comes from Old English gasten, "frighten," which comes in turn from gāst, "ghost." If you've seen a look of absolute shock or terror on someone's face — like when your mom (or dad) sees a mouse — you can describe the look with the adjective aghast. If someone says "You should have seen the look on your face!" after sneaking up on you, you probably looked aghast yourself. "Boo!"

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Vocabulary lists containing aghast

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Everyone John meets in “I Swear” is either aghast by his tics or accepts them without struggle.

From Salon • Apr. 26, 2026

I’m not aghast at the automatic extra-innings runner.

From The Wall Street Journal • Mar. 26, 2026

When Barbara Walters started interviewing celebrities on her prime time specials for ABC in the 1970s, pearl-clutching journalistic purists were aghast.

From Los Angeles Times • Mar. 23, 2026

Wednesday, a self-described indie rock band, said they were "aghast" to see Wasserman feature in the Epstein files and did not want to continue to be associated with him.

From BBC • Feb. 10, 2026

How could I have forgotten? he thought, standing aghast in the middle of the darkening street.

From "The Golden Goblet" by Eloise Jarvis McGraw

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