1. superlative form of mirk; darkest or most gloomy
Usage: archaic or poetic; chiefly Scottish or Northern English dialect

Examples

• The mirkest corner of the forest was avoided by travelers.
• On the mirkest winter nights, the stars seemed to disappear entirely.
• The old castle's mirkest chamber held ancient secrets.
• She walked through the mirkest part of the woods without fear.