steep

[1]	immerse , engulf , plunge , engross , absorb , soak up
[2]	infuse

adj.

[1]	sheer , abrupt , precipitous , bluff , sharp , nearly vertical/perpendicular/upright
[2]	expensive , dear , high , overpriced , exorbitant , excessive , extravagant , extortionate , (Colloq) stiff
[3]	exorbitant , extortionate , outrageous , unconscionable , usurious