The novelist's insistence on fictitiousness allowed readers to suspend disbelief and accept the story's strange events.

She fictitiously described the ancient legend as if it were her own family's history.

The committee dismissed the complaint as fictitious after reviewing the evidence.

On the rotating platform, the physicist explained that a fictitious force must be added to the equations to describe the observed motion.

During the spinning ride, the instructor explained how fictitious forces make riders feel pressed outward.