In a profound, not superficial, manner.
Richly.
So as to extend far down or far into something.
To a deep extent or degree; very greatly.
At depth.
In large volume.
Soundly; so as to be hard to rouse.
really; seriously; used to attempt to introduce a serious point in a less serious conversation
no kidding!; is that so? (sometimes used sarcastically in response to the obvious)