Flighty /(?)/

Flight·y

Flighty

a.
  1. Fleeting; swift; transient.
    The flighty purpose never is o'ertook, Unless the deed go with it.
  2. Indulging in flights, or wild and unrestrained sallies, of imagination, humor, caprice, etc.; given to disordered fancies and extravagant conduct; volatile; giddy; eccentric; slighty delirious.
    Proofs of my flighty and paradoxical turn of mind.
    A harsh disciplinarian and a flighty enthusiast.