diffident
lack of confidence in ones own ability
demure
characterized by shyness, reserved
staid
of settled character
acclivity
upward slope
consummate
perfect; superb
ethereal
heavenly; delicate
exalt
elevate, raise, glorify
precipice
very steep side of a mountain or cliff
sublime
noble, elevated
sublimate
express an inappropriate instinct in a more socially acceptable way
zenith
highest point
abject
extremely bad or severe
abyss
immeasurably deep hole
abysmal
immeasurably low
declivity
downward slope
menial
low servile