Jet-black
(adjective)
Deep and dark black in color, like the lignite coal jet.
Origin:
Compound word, from jet + black, jet is a type of black lignite coal.
Examples:
- The raven had jet-black feathers.
- She wore a jet-black dress to the funeral.
- The jet-black hair was styled in a sleek bob.
- The jet-black car was a real head-turner.
- The jet-black night sky was dotted with stars.