An accident or error caused by negligence; failure to exercise due care (often used in legal contexts).
その事故は運転手の過失によるものと判断された。
The accident was determined to be due to the driver's negligence.
医師の過失が原因で訴訟になった。
A lawsuit arose because of the doctor's negligence.
軽微な過失と重大な過失では責任が変わる。
Liability differs between minor negligence and serious negligence.
Used to mean a fault, defect, or mistake in a broader sense.
書類にいくつかの過失が見つかった。
Several errors were found in the documents.
設計の過失が原因で製品に欠陥が出た。
A design fault caused defects in the product.