Thick

厚い

atsui

(relatively great in extent from one surface to another)

厚い

atsui

(heavy in build)

厚さ

atsusa

(measuring a certain number of units in this dimension)

太い

futoi

(relatively great in extent from one surface to another)

太い

futoi

(heavy in build)

密集した

misshū shita

(densely crowded or packed)

混んだ

konda

(abounding in number)

濃い

koi

(having a viscous consistency)

濃い

koi

(impenetrable to sight)

鈍い

nibui

(informal: stupid)

厚く

atsuku

(in a thick manner)