lustrous vs glossy

lustrous is not a noun while glossy is a noun.

Word	Noun	Adjective	Verb	Adverb
lustrous	No	Yes	No	No
glossy	Yes	Yes	No	No

As adjectives, lustrous and glossy are synonyms defined as:

Other synonyms of lustrous include glistening, sheeny, shining, shiny.

lustrous (noun)	glossy (noun)
	a photograph that is printed on smooth shiny paper
	a magazine printed on good quality paper

lustrous (adjective)	glossy (adjective)
brilliant	superficially attractive and stylish; suggesting wealth or expense
made smooth and bright by or as if by rubbing; reflecting a sheen or glow	reflecting light
reflecting light	(of paper and fabric and leather) having a surface made smooth and shiny especially by pressing between rollers
	based on pretense; deceptively pleasing