Dictionary.net

unmistakably; "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"; (`plain' is often used informally for `plainly' as in"he is plain stubborn")

In a plain manner; fairly; clearly; not obscurely.

adv. Without gloss or disguise; sincerely; in earnest; fairly;—evidently; clearly; not obscurely.