lightless

Everyday

With no light at all; completely dark. tree →

In the lessons

A literary word in stories and science: deep caves and the deep ocean are lightless, so animals there may be blind or make their own light. It tells the reader a place is dark and often frightening.

Examples

• The miners worked in lightless tunnels. tree →
• Deep in the ocean is a lightless world. tree →
• The Mole's underground home was lightless at night. tree →
• Fish in lightless caves often have no eyes. tree →
• The lightless windows showed the house was empty. tree →
• A black hole is so strong that it seems lightless. tree →

Note

Light + -less (without). More common words: dark, unlit, pitch-dark.