The term uninformed is often used for someone who has little or no knowledge about something. It's more polite than being called ignorant. The term willfully ignorant refers to those who lack the information or facts because they refuse to acknowledge them.

What do you call willfully ignorant?

willful ignorance (uncountable) (idiomatic, law) A decision in bad faith to avoid becoming informed about something so as to avoid having to make undesirable decisions that such information might prompt. Synonyms: vincible ignorance, willful blindness.

Does it mean to be willfully ignorant?

Filters. (idiomatic, law) A decision in bad faith to avoid becoming informed about something so as to avoid having to make undesirable decisions that such information might prompt. noun. 16.