fictional, fictitious Definition

fiction
noun

1. Literature concerning imaginary characters or events, eg a novel or story.

Thesaurus: novels, tales, romances, stories, legend, myth, parables, yarns, fantasy, fable.
2. A pretence; a lie.

Thesaurus: lie, falsehood, fabrication, fib, invention, concoction, tall story, cock-and-bull story, fancy, figment, whopper; Antonym: truth.
3. law.
A misrepresentation of the truth, accepted for convenience.

Derivative: fictional
adj

Occurring in or created for fiction.

Derivative: fictionally
adverb

Etymology: 14c: from Latin fictio, from fingere to mould.

Info:

These words are often confused with each other.