Gross negligence - a concept of civil law and criminal law.

Gross negligence is attributed to someone who disregards very simple and obvious considerations that would have prevented damage. According to established case law, a person acts with gross negligence if he or she fails to exercise the necessary care to an unusually high degree under the overall circumstances and disregards what should have been obvious to anyone.

Source reference: See VDT publication "VDT article series part 5 l Glossary" and the source indicated there.