steep

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

They will be called upon to deal with freight trains of up to 900 tons over gradients considerably steeper than those of the Central Section—for example, the frequent stretches of 1 in 100 between Victoria and the Medway towns—and their running to fast schedules will include the haulage of the "Night Ferry", which may load up to as much as 700 tons, and fully-fitted trains of 30 or more heavy Continental train ferry wagons.

Expensive.

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

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

Her ears and thoughts in steep amaze erected

resulting in a mast or windshield angle that strongly diverges from the perpendicular.

The steep rake of the windshield enhances the fast lines of the exterior.

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

It ended precipitously in a dark and narrow ravine, formed on the other side by an opposite mountain, the lofty steep of which was crested by a city gently rising on a gradual slope

[L]ess scared, but not built for gazelle cavorting, so awkward on the steep that she had to take to hands and knees, and looked more like a monkey.

To soak or wet thoroughly.

They steep skins in a tanning solution to create leather.

The tea is steeping.

To imbue with something; to be deeply immersed in.

a town steeped in history

The learned of the nation were steeped in Latin.

To make tea (or other beverage) by placing leaves in hot water.