grasping vs avaricious

grasping is a noun but avaricious is not a noun.

Word	Noun	Adjective	Verb	Adverb
grasping	Yes	Yes	No	No
avaricious	No	Yes	No	No

As adjectives, grasping and avaricious are synonyms defined as:

Other synonyms of grasping include covetous, grabby, greedy, prehensile.

grasping (noun)	avaricious (noun)
the act of gripping something firmly with the hands (or the tentacles)
understanding with difficulty

grasping (adjective)	avaricious (adjective)
immoderately desirous of acquiring e.g. wealth	immoderately desirous of acquiring e.g. wealth