Emptiness is a related term of fickleness.
As a proper noun emptiness
is (astronomy) a chinese constellation near aquarius and equuleus, one of the 28 lunar mansions and part of the black turtle.
As a noun fickleness is
the quality of being fickle.
emptiness
English
Noun
The state or feeling of being empty
fickleness
English
Noun
The quality of being fickle.