science fiction

noun

: fiction dealing principally with the impact of actual or imagined science on society or individuals or having a scientific factor as an essential orienting component

science-fictional

ˈsī-ən(t)s-ˈfik-sh(ə-)nəl 

adjective

Examples of science fiction in a Sentence

Time travel exists only in the realm of science fiction.

Recent Examples on the Web

The film is a modern adaptation of which classic science fiction novel? —Sarah Whitmire, Forbes.com, 7 Aug. 2025

The idea itself is a science fiction trope in its own right, enlivened by idiosyncratic details and a host of strong performances. —Alison Herman, Variety, 5 Aug. 2025

Until recently, stories of human-AI companionship were mostly confined to the realms of Hollywood and science fiction. —Salvador Rodriguez, CNBC, 1 Aug. 2025

Leanne’s existence is like science fiction — resembling something human but in a contextless bubble that has no connection to anything outside the walls of her home. —Nina Metz, Chicago Tribune, 31 July 2025

Word History

First Known Use

1898, in the meaning defined above

Rhymes for science fiction

• antifriction
• benediction
• contradiction
• crucifixion
• dereliction
• interdiction
• jurisdiction
• malediction
• addiction
• affliction
• constriction
• conviction

Kids Definition

science fiction

noun

: fiction that deals with the influence of real or imagined science on society or individuals

science-fictional

ˈsī-ən(t)s-ˈfik-shnəl

-shən-ᵊl

adjective