spotless vs spick

spotless is not a noun while spick is a noun.

Word	Noun	Adjective	Verb	Adverb
spotless	No	Yes	No	No
spick	Yes	Yes	No	No

As adjectives, spotless and spick are synonyms defined as:

Other synonyms of spotless include immaculate, speckless, spic-and-span, spic, spick-and-span.

spotless (noun)	spick (noun)
	(ethnic slur) offensive term for persons of Latin American descent

spotless (adjective)	spick (adjective)
completely neat and clean	completely neat and clean