won·der·ful·ly \-f(ə)lē, -li\adverb Etymology: Middle English wonderfulliche, from wonderful (I) + -liche -ly 1.: in such a way or to such an extent as to excite wonder : marvelously, amazingly < a wonderfully beautiful sunset > < had worked wonderfully for years > 2.: exceedingly, very < not very imaginative but wonderfully pleasing — George Saintsbury >