1. having the color or appearance of slate; dark bluish-gray
2. resembling slate in texture or composition; having thin layers that split easily
Usage: geological

Examples

• The slaty clouds promised rain before evening.
• Her slaty eyes reflected the stormy weather outside.
• The geologist examined the slaty rock formation.
• Slaty shale covered the hillside in thin, flat pieces.
• The old roof was made of slaty tiles that had weathered to a dull gray.
• Birds with slaty feathers blended into the rocky cliffs.