superbly vs wondrous

superbly is not an adjective while wondrous is an adjective.

Word	Noun	Adjective	Verb	Adverb
superbly	No	No	No	Yes
wondrous	No	Yes	No	Yes

As adverbs, superbly and wondrous are synonyms defined as:

Other synonyms of superbly include marvellously, marvelously, terrifically, toppingly, wonderfully, wondrously.

superbly (adjective)	wondrous (adjective)
	extraordinarily good or great; used especially as intensifiers

superbly (adverb)	wondrous (adverb)
(used as an intensifier) excellently	(used as an intensifier) excellently