You all know déjà vu as that sudden strange feeling you’ve experienced this before? A friend once asked, “Why isn’t there a word for the sudden strange feeling you have NOT experienced this before?” It turns out there is!

Often described as the opposite of déjà vu, jamais vu involves a sense of eeriness and the observer’s impression of seeing the situation for the first time, despite rationally knowing that he or she has been in the situation before.

http://en.wikipedia.org/wiki/Jamais_vu

doug