spic vs speckless

spic is a noun but speckless is not a noun.

Word	Noun	Adjective	Verb	Adverb
spic	Yes	Yes	No	No
speckless	No	Yes	No	No

As adjectives, spic and speckless are synonyms defined as:

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

spic (noun)	speckless (noun)
(ethnic slur) offensive term for persons of Latin American descent

spic (adjective)	speckless (adjective)
completely neat and clean	completely neat and clean