Instability is a related term of flightiness.
As nouns the difference between instability and flightiness
is that instability is (uncountable) the quality of being unstable while flightiness is the quality of being flighty.
instability
English
Noun
(
wikipedia instability)
(uncountable) The quality of being unstable.
(physics, countable) A state that is not in equilibrium, or in which a small change has a large irreversible effect.
Synonyms
* volatility
Related terms
* instable
* stability
See also
* disequilibrium
flightiness
English
Noun
(-)
The quality of being flighty.