Grim and Stygian

Grim adjective - Harsh and threatening in manner or appearance.

Stygian and grim are semantically related. In some cases you can replace term "Stygian" with "Grim", this adjectives are similar.

Nearby Words: grimy, grimly, grimed

Stygian adjective - Being without light or without much light.

Grim and stygian are semantically related. Sometimes you can use "Grim" instead an adjective "Stygian".