saturnine

adjective

1. Of a person: having a tendency to be cold, bitter, gloomy, sarcastic, and slow to change and react.
2. Of a setting: depressing, dull, gloomy.
3. Of, pertaining to, or containing lead (which was symbolically associated with the planet Saturn by alchemists).
4. Of a disease: caused by lead poisoning (saturnism); of a person: affected by lead poisoning.