What is what does ignorant mean?

Ignorant means lacking knowledge, information, or awareness about a particular subject or topic. It may also refer to someone who is uneducated or uninformed about a particular subject. Ignorance can lead to misunderstanding, inaccurate judgments, and poor decision making. Ignorant is often used in a derogatory way, implying that a person should or could have known better if they had taken the time to educate themselves.