Dictionary

Specter, ghost, haunting spirit

To make grim; to give a stern or forbidding aspect to.

Dismal and gloomy, cold and forbidding

Example: Life was grim in many northern industrial towns.

Rigid and unrelenting

Example: His grim determination enabled him to win.

Ghastly or sinister

Example: A grim castle overshadowed the village.

Disgusting; gross

Anger, wrath.