[quote=mdk]Willful ignorance is the act of dismissing some evidence in light of other, unrelated evidence. 

Regular ignorance is simply dismissing evidence period.

I tend to find that vehement religious types tend to be more susceptible to regular ignorance, while vehement atheist types tend to be willfully so (while generally LESS ignorant than the regular-ignorant religious sorts). 

At the end of the day everybody who says anything about anything sucks, and is stupid, and I hate them.[/quote]

Your definitions are weird. I dunno how you came up with them, but they don't match the actual meanings of the terms as the majority of people use them.

Ignorance is being unaware of something. Isolated tribes of native people in Africa and such were ignorant of Christianity before missionaries and such came and spread the word.

Willful ignorance is ignoring or refusing to acknowledge anything that contradicts with what you already think or believe. Creationists who deny evolution despite the mountains of evidence are being willfully ignorant. Oh, and a bonus example, atheists who say there absolutely never ever could have ever been any kind of deity ever despite the huge glaring question about where everything pre-Big Bang came from are also being willfully ignorant, though rather than ignoring tons of evidence they're ignoring a major gap in knowledge.

Both kinds of ignorance you're describing are actually willful ignorance. Regular ignorance means what it says in the dictionary: "the state or fact of being ignorant ("lacking in knowledge or training; unlearned: an ignorant man."); lack of knowledge, learning, information, etc."