1. in a grim, dark, or forbidding manner; with a grim expression or tone
2. in a dirty or grimy manner; with grime or dirt

Examples

• She grimily surveyed the damage from the fire.
• The old factory stood grimily against the gray sky.
• He grimily acknowledged the harsh reality of the situation.
• The windows were grimily coated with years of dust and pollution.
• She smiled grimily, knowing the worst was yet to come.
• The coal miners emerged grimily from the shaft after their shift.