ignore的名词形式是ignorance。ignorance的意思是无知。ignorance的例句：I am embarrassed by my complete ignorance of history（我对历史一无所知，这让我很难堪）。

ignorance的例句：There is so much ignorance about mental illness（人们对精神疾病很不了解）；In my ignorance I had never heard country& western music（我很无知，从来没听过乡村与西部音乐）。