fictitious vs fictive

fictitious and fictive both are adjectives.

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

As adjectives, fictitious and fictive are synonyms defined as:

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

fictitious (adjective)	fictive (adjective)
adopted in order to deceive	adopted in order to deceive
formed or conceived by the imagination	capable of imaginative creation