Synonyms of flighty

Adjective

1. flighty, flyaway, head-in-the-clouds, scatterbrained, frivolous (vs. serious)

usage: guided by whim and fancy; "flighty young girls"

2. skittish, flighty, spooky, nervous, excitable (vs. unexcitable)

usage: unpredictably excitable (especially of horses)

Definition and meaning of flighty (Dictionary)