rapacity vs predaciousness

rapacity and predaciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
rapacity	Yes	No	No	No
predaciousness	Yes	No	No	No

As nouns, rapacity and predaciousness are synonyms defined as:

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

Other synonyms of rapacity include predaceousness, rapaciousness.

rapacity (noun)	predaciousness (noun)
reprehensible acquisitiveness; insatiable desire for wealth (personified as one of the deadly sins)	(of an animal, usually a bird) The quality of subsisting off live prey.
extreme gluttony
(of an animal, usually a bird) The quality of subsisting off live prey.