adverbs
spoken with poor articulation as if with a thick tongue
"after a few drinks he was beginning to speak thickly"
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 a thick consistency
"the blood was flowing thick"
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"