something that doesn't exist in real life
"Dude! Stop searching online for a portal gun, that thing is fictional."
1. Not fact.
2. Entertainment.
3. Stories.
My favorite genre of fiction is Science Fiction.
A fictitious word made up by people who don't know words like fictional and fictitious. The people making it up are probably fictional too.
There's no such word, so there's no valid example.
At least half of what your recruiter told you before entering military service.
These new DEPer's don't realize that I'm feeding them just enough fiction to get them to sign a contract.
Disguised autobiography.
All fiction is at least partially autobiographical, and all autobiography is at least partially fiction.