chiefly

Some have found evidence of environmental factors, chiefly experienced by women in pregnancy, though some question whether any such factors can be primary determinants of ASD.

Trump's decision was influenced by America's regional allies who were opposed to the deal, chiefly Israel.

By that we mean chiefly California’s laws, which are the strongest in the nation — specifically the California Consumer Privacy Act signed by then-Gov.

According to Winslow: “Future progress in the reduction of mortality and in the promotion of health and efficiency depends chiefly upon the application of medical science to the early diagnosis and preventive treatment of disease.”

Still, because Priebus may be right that Trump was motivated chiefly by boredom, it’s impossible to be confident of the intent of his Napoleonic statement.