splendor vs brilliance

splendor and brilliance both are nouns.

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

As nouns, splendor and brilliance are synonyms defined as:

splendor and brilliance: the quality of being magnificent or splendid or grand

Other synonyms of splendor include grandeur, grandness, magnificence, splendour.

splendor (noun)	brilliance (noun)
a quality that outshines the usual	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	the quality of being magnificent or splendid or grand
	unusual mental ability