As nouns the difference between emptiness and bleakness
is that emptiness is the state or feeling of being empty while bleakness is the characteristic of being bleak.
As a proper noun Emptiness
is a Chinese constellation near Aquarius and Equuleus, one of the 28 lunar mansions and part of the Black Turtle.
emptiness
English
Noun
The state or feeling of being empty
bleakness
English
Noun
(-)
The characteristic of being bleak.