From BiblePortal Wikipedia

King James Dictionary [1]

MAN'IFESTLY, adv. Clearly evidently plainly in a manner to be clearly seen or understood.

Webster's Dictionary [2]

(adv.) In a manifest manner.

International Standard Bible Encyclopedia [3]

man´i - fest - 51 ( מראה , mar'eh , "(in) personal presence"): Has the meaning of "by direct vision," as in   1 Corinthians 13:12 , "face to face," stating positively ( Numbers 12:8 ) what the next clause states negatively, namely, "not in dark speeches." "Apparently" of the King James Version is ambiguous.