Definition of "flighty"

flighty

/ˈflaɪti/

adjective
comparative flightier, superlative flightiest
1. Given to unplanned and silly ideas or actions.
2. (of a bird) That flies easily or often.
  Quotations
  "We know that flighty birds suffer from greater risk of raptor predation, and I assume that it is useful to understand the effects of urbanization because flighty species may be more vulnerable to anthropogenic disturbance."
  2013, Diego Gil, Henrik Brumm, Avian Urban Ecology‎
3. (obsolete) Swift.
  Quotations
  Permanent way and other checks then somewhat slowed down this flighty progress.
  1962 July, Cecil J. Allen, “Locomotive Running Past and Present”, in Modern Railways, page 44