We are all ignorant about subjects. Until we learn about them. The willfully ignorant are those that have encountered something, acknowledged it, and continue to act as they did before encountering that new information. At least that is how I view them.

I am knowledgeable about quite a few things though I am ignorant about some areas of everything that I know. There are also far more subjects that I am likely almost completely ignorant about.

People have made the term "ignorant" a negative thing. Yet if it doesn't mean "does not know about something" then what word describes that?