silverish vs argent

silverish is not a noun while argent is a noun.

Word	Noun	Adjective	Verb	Adverb
silverish	No	Yes	No	No
argent	Yes	Yes	No	No

As adjectives, silverish and argent are synonyms defined as:

silverish and argent: of lustrous grey; covered with or tinged with the color of silver

Other synonyms of silverish include silver, silvery.

silverish (noun)	argent (noun)
	a metal tincture used in heraldry to give a silvery appearance

silverish (adjective)	argent (adjective)
of lustrous grey; covered with or tinged with the color of silver	of lustrous grey; covered with or tinged with the color of silver