Describes a sharply steep slope or cliff. Literary and somewhat formal; in everyday speech 険しい (けわしい) is more common.
The mountain is known for its precipitous rock faces.
Because of the steep terrain, proper equipment is necessary for climbing.
Common everyday word for 'steep' or 'rugged'. 険峻 is more literary and emphasizes extreme steepness.
Also means 'steep', but more common than 険峻. 急峻 is often used in geographical descriptions.
Standard kanji form for 'steep, precipitous'.
Variant using 嶮 (steep, dangerous) instead of 険; less common.
Irregular kanji usage; 剣 means 'sword', not 'steep'. Likely a mistaken or creative spelling.
Compound of 険 (steep, dangerous) and 峻 (steep, high). The exact historical derivation is uncertain; the spelling is conventionally associated with steepness.