brilliantly vs brilliant

brilliantly is not an adjective while brilliant is an adjective.

Word	Noun	Adjective	Verb	Adverb
brilliantly	No	No	No	Yes
brilliant	No	Yes	No	No

brilliantly (adjective)	brilliant (adjective)
	full of light; shining intensely
	having strong or striking color
	characterized by grandeur
	having or marked by unusual and impressive intelligence
	clear and sharp and ringing
	of surpassing excellence

brilliantly (adverb)	brilliant (adverb)
in an extremely intelligent way
with brightness