ˈ ̷ ̷| ̷ ̷ adjective
Etymology: from the phrase low grade
1. : being of a grade or quality rated as inferior
low-grade materials
low-grade minds — English Journal
low-grade ore
2. : being near the lower extreme of the range in which it may occur
a low-grade fever is a slight fever
a low-grade imbecile exhibits extreme deviation from normal
— compare high-grade