In a thick manner; deeply; closely.

in a concentrated manner; "old houses are often so densely packed that perhaps three or four have to be demolished for every new one built"; "a thickly populated area"

with thickness; in a thick manner; "spread 1/4 lb softened margarine or cooking fat fairly thickly all over the surface"; "we were visiting a small, thickly walled and lovely town with straggling outskirt"

in quick succession; "misfortunes come fast and thick"

spoken with poor articulation as if with a thick tongue; "after a few drinks he was beginning to speak thickly"

with a thick consistency; "the blood was flowing thick"