Anything that you could have picked from the plant yourself (a pear, a carrot, a berry) AND has not been sprinkled with conservants/pesticides/shiny gloss is unprocessed. If it comes in a package and looks nothing like what nature gives (noodles, cookies, jell-o), it's been processed.
Raw milk also counts as unprocessed, but in the 21st century there's no excuse to be drinking raw milk.
in the 21st century there's no excuse to be drinking raw milk
That's debatable -- some people believe raw milk to be very beneficial.
This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
To any future monthly posters of SQ threads, please remember to add the "stupid_questions" tag.