rejoicing vs jubilant

rejoicing is a noun but jubilant is not a noun.

Word	Noun	Adjective	Verb	Adverb
rejoicing	Yes	Yes	No	No
jubilant	No	Yes	No	No

As adjectives, rejoicing and jubilant are synonyms defined as:

rejoicing and jubilant: joyful and proud especially because of triumph or success

Other synonyms of rejoicing include exultant, exulting, prideful, triumphal, triumphant.

rejoicing (noun)	jubilant (noun)
the utterance of sounds expressing great joy
a feeling of great happiness

rejoicing (adjective)	jubilant (adjective)
joyful and proud especially because of triumph or success	joyful and proud especially because of triumph or success
	full of high-spirited delight