(~er, ~est)
1.
You can use ~ to emphasize that a state or situation is complete and does not involve or is not mixed with anything else.
His music is ~ delight...
Sheer chance quite often plays an important part in sparking off an idea.
= pure
ADJ: ADJ n emphasis
2.
A ~ cliff or drop is extremely steep or completely vertical.
There was a ~ drop just outside my window...
ADJ: usu ADJ n
3.
Sheer material is very thin, light, and delicate.
...~ black tights.
ADJ