Webster's Revised Unabridged Dictionary · 1913

Heavily

Heavily , adverb

[From 2d Heavy.]

1.
In a heavy manner; with great weight; as, to bear heavily on a thing; to be heavily loaded.
Heavily interested in those schemes of emigration. — The Century
2.
As if burdened with a great weight; slowly and laboriously; with difficulty; hence, in a slow, difficult, or suffering manner; sorrowfully.
And took off their chariot wheels, that they drave them heavily. — Ex. xiv. 25
Why looks your grace so heavily to-day? — Shakespeare
3.
Greatly; intensely; as, heavily involved in a plot; heavily invested in real estate.
4.
In large quantity; as, it rained heavily.