Chillingly bad - Tradução em português

Boris Johnson wants to take on strategic oversight of schools if re-elected as London mayor, claiming only a systemic fight against educational underachievement can tackle the social exclusion that he believes lay behind last summer's riots.
Johnson, who has already launched an inquiry into the state of the capital's education, told the Guardian on Friday that he believed some schools in London were "chillingly bad", adding that it was unacceptable to have 55% of young black men unemployed.