noun

1. The steep side of a mountain etc.; a slope or acclivity.

Synonyms: brant

adjective

1. Of a near-vertical gradient; of a slope, surface, curve, etc. that proceeds upward at an angle near vertical.

   “a steep hill or mountain; a steep roof; a steep ascent; a steep barometric gradient”

2. Expensive

   “Twenty quid for a shave? That's a bit steep.”

3. Difficult to access; not easy reached; lofty; elevated; high.