fictive vs sham

fictive is not a noun while sham is a noun.

Word	Noun	Adjective	Verb	Adverb
fictive	No	Yes	No	No
sham	Yes	Yes	Yes	No

As adjectives, fictive and sham are synonyms defined as:

Other synonyms of fictive include assumed, false, fictitious, pretended, put on.

fictive (noun)	sham (noun)
	something that is a counterfeit; not what it seems to be
	a person who makes deceitful pretenses

fictive (adjective)	sham (adjective)
adopted in order to deceive	adopted in order to deceive
capable of imaginative creation

fictive (verb)	sham (verb)
	make believe with the intent to deceive
	make a pretence of