The idiom "flighty" refers to someone who is considered indecisive and irresponsible.
This expression is used to describe individuals who are inconsistent, unpredictable, and often change their opinions, plans, or course of action without much thought.
Option
Meaning
Light
This does not capture the essence of "flighty".
Indecisive and irresponsible
This is the correct interpretation of "flighty".
Someone who loves flying
While it may seem related, it does not fit the idiomatic meaning.
Someone who flies kites
This is unrelated to the idiomatic use of "flighty".
Therefore, when someone is described as being "flighty," it means they are likely to be indecisive and irresponsible.