brilliance vs brilliant

brilliance is a noun but brilliant is not a noun.

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

brilliance (noun)	brilliant (noun)
a light within the field of vision that is brighter than the brightness to which the eyes are adapted
the quality of being magnificent or splendid or grand
unusual mental ability

brilliance (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