Synonyms of fictional

2 Syllables
made-up, pretend, fabled, floater, blue-sky, retold
3 Syllables
fanciful, trumped-up, notional, invented, fictive, fantastic, dreamed-up, phantasmal, phantasmic, fictitious
4 Syllables
illusory, chimerical, make-believe, narrative, barmecidal, fabricated, imagined
5 Syllables
phantasmagoric, imaginary
6 Syllables
hallucinatory