ignorant

adj.

无知的，愚昧的；由无知引起的；无学识的；

ignorant of不知道；不懂

1. He's so ignorant that he cannot write his own name.
   他很无知，连自己的名字都写不出。
2. She regarded her critics as ignorant and prejudiced.
   她认为那些批评她的人既无知又存有偏见。
3. Ignorant children sometimes laugh at beggars and tramps.
   无知的孩子们有时会嘲笑乞丐和无家可归的人。
4. His ignorant behaviour at the dinner table caused much embarrassment.
   他在餐桌上举止粗鲁，在座的人颇为难堪。
5. I'm ignorant of his plan.
   我对他的计划一无所知。
6. I was quite ignorant when the earthquake happened.
   我完全不知道地震在什么时候发生的。

The ignorant schoolmaster : five lessons in intellectual emancipation
Preschoolers mistrust ignorant and inaccurate speakers.
Wild chimpanzees inform ignorant group members of danger.
It pays to be ignorant: A simple political economy of rigorous program evaluation
Immunologically ignorant autoreactive T cells, epitope spreading and repertoire limitation
Ignorant Theory and Knowledgeable Workers: Interrogating the Connections between Knowledge, Skills and Services
Massively Confused Investors Making Conspicuously Ignorant Choices (MCI-MCIC)
Ravens, Corvus corax, differentiate between knowledgeable and ignorant competitors.
Learning words from knowledgeable versus ignorant speakers: links between preschoolers' theory of mind and semantic development.
Twelve-month-olds communicate helpfully and appropriately for knowledgeable and ignorant partners