"Egregious crimes" refers to actions that are extremely severe, shocking, or exceptionally bad in nature. These are significant offenses that can cause great harm or have a lasting negative impact on individuals or society. Full definition
In this case it had only been 13 years since the equally egregious crimes occurred. (slaw.ca)
It took multiple failed legislative attempts to streamline the process for dismissing teachers accused of egregious crimes such as sex abuse and drug dealing. (laschoolreport.com)
Yet another shortcoming of Butt's theory is that it focuses monolithically on economic reparations, when in fact, economic redistribution is quite insufficient for the reparation of the most egregious crimes of colonialism. (blog.politics.ox.ac.uk)