res adjudicata vs res judicata

res adjudicata and res judicata both are nouns.

Word	Noun	Adjective	Verb	Adverb
res adjudicata	Yes	No	No	No
res judicata	Yes	No	No	No

As nouns, res adjudicata and res judicata are synonyms defined as:

res adjudicata and res judicata: a matter already settled in court; cannot be raised again

res adjudicata (noun)	res judicata (noun)
a matter already settled in court; cannot be raised again	a matter already settled in court; cannot be raised again