adj.无知的，愚昧的,由无知引起的,无学识的
Authors are famously ignorant about the realities of publishing.
作者们不了解出版界的实际情况，这是人所共知的。
People don'tlike to ask questions for fear of appearing ignorant.
人们不喜欢问问题，害怕自己会显得很无知。
Many people are worryingly ignorant of the facts about global warming.
许多人竟然不知道地球变暖的事实，实在令人担忧。