You use patent to describe something, especially something bad, in order to indicate in an emphatic way that you think its nature or existence is clear and obvious.
1. unmistakably (`plain' is often used informally for `plainly');
"the answer is obviously wrong""she was in bed and evidently in great pain""he was manifestly too important to leave off the guest list""it is all patently nonsense""she has apparently been living here for some time""I thought he owned the property, but apparently not""You are plainly wrong""he is plain stubborn"