obscure

mastery
UK /əbˈskjʊə(ɹ)/ US /əbˈskjʊɹ/adjverb

card 1 of 10 · context meaning

Which meaning of 'obscure' best matches its usage in the sentence?

Of all the medical monsters Peter Hotez could have set out to slay, the Yale University researcher could not have chosen a more wily and obscure villain than the hookworm.