'Thickly' definitions:

Definition of 'thickly'

From: WordNet
adverb
Spoken with poor articulation as if with a thick tongue; "after a few drinks he was beginning to speak thickly"
adverb
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" [syn: densely, thickly] [ant: thinly]
adverb
With a thick consistency; "the blood was flowing thick" [syn: thickly, thick] [ant: thin, thinly]
adverb
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" [ant: lightly, thinly]
adverb
In quick succession; "misfortunes come fast and thick" [syn: thick, thickly]

Definition of 'Thickly'

From: GCIDE
  • Thickly \Thick"ly\, adv. In a thick manner; deeply; closely. [1913 Webster]