As I consulted dictionary and looked them up, they all probably express similarly the same thing.
fictive adjective
/ˈfɪktɪv/created by imagination
fictional adjective
/ˈfɪkʃənl/not real or true; existing only in stories; connected with fiction
fictitious adjective
/fɪkˈtɪʃəs/invented by someone rather than true
Could you show us the difference between them?
Best Answer
The adjectives fictional and fictitious are much more common than fictive.
I think
whereas:
I can’t think of a reason the two couldn’t be synonymous, and what I’ve listed here is not a hard difference that must be adhered to. But I think that, in general, I’d consider Oliver Twist to be a fictional name, whereas a wanted criminal might use a fictitious name to conceal his true identity from authorities.