rapaciousness vs predaceousness

rapaciousness and predaceousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
rapaciousness	Yes	No	No	No
predaceousness	Yes	No	No	No

As nouns, rapaciousness and predaceousness are synonyms defined as:

rapaciousness and predaceousness: (of an animal, usually a bird) The quality of subsisting off live prey.

Other synonyms of rapaciousness include predaciousness, rapacity.

rapaciousness (noun)	predaceousness (noun)
extreme gluttony	(of an animal, usually a bird) The quality of subsisting off live prey.
an excessive desire for wealth (usually in large amounts)
(of an animal, usually a bird) The quality of subsisting off live prey.