at fault

Idioms  

1. Responsible for a mistake, trouble, or failure; deserving blame. For example, At least three cars were involved in the accident, so it was hard to determine which driver was at fault, or He kept missing the target and wondered if the sight on his new rifle was at fault. In Britain this usage was formerly considered incorrect but is now acceptable; in America it has been widespread since the mid-1800s. Also see in the wrong.

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Example Sentences

See Examples For:

at fault

On terrorism, he was unequivocal that the victim is never at fault.

From Salon ● Oct. 8, 2026

Amtrak claimed a New Jersey Transit contractor was at fault.

From The Wall Street Journal ● Sep. 22, 2026

However, Vladimir Barbin, the Russian ambassador to Denmark, fired back saying it was the helicopter that had been at fault.

From Barron's ● Sep. 15, 2026

Only when an airline is at fault - not issues such as air traffic control problems - is extra compensation payable.

From BBC ● Sep. 9, 2026

There still wasn’t any indication Reggie could be at fault, but Ed obviously wanted to be there for his son.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

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