n.无知，愚昧,蒙
Ignorance of people brings fear, fear of the unknown.
人们的无知会带来恐惧，对未知事物的恐惧。
Her ignorance of the area put her at a decided disadvantage.
她对该地区一无所知，这显然对她不利。
I was alarmed by his naivety and ignorance of international affairs.
他对国际事务缺乏经验且无知，这很让我吃惊。