MEANING
Having a speed below the speed of light in a vacuum.
Use it for
Words that belong together
- subluminal speed
- subluminal travel
On the page
The colony ship remained subluminal throughout the voyage.
Even at that enormous subluminal speed, the crossing would take years.
Opposite meanings
Related words
Word forms
- Base
- subluminal
Explore related collections
Usage notes
Primary category: sci-fi. Forms: Normally non-gradable as a speed classification. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.
Practice this word in a sentenceYour margin notes
Keep a thought for later. Sign in to save privately.