Frivolity is a synonym of fickleness.
As nouns the difference between frivolity and fickleness
is that frivolity is frivolous act while fickleness is the quality of being fickle.
frivolity
English
Noun
(frivolities)
frivolous act
state of being frivolous
Related terms
* frivolous
fickleness
English
Noun
The quality of being fickle.