flighty

UK: /ˈflaɪti/ US: /ˈflaɪti/ ,(flī′tē)

Inflections of 'flighty' (adj):

flightier

adj comparative

flightiest

adj superlative

WordReference Random House Learner's Dictionary of American English © 2026

flight•y /ˈflaɪti/   adj., -i•er, -i•est. 

1. unstable;
   skittish:
   He's too flighty to deal with this problem.

flight•i•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026

flight•y  (flī′tē), adj., flight•i•er, flight•i•est. 

1. given to flights of fancy;
   capricious;
   frivolous.
2. slightly delirious;
   light-headed;
   mildly crazy.
3. irresponsible:
   He said I was too flighty to be a good supervisor.
4. [Archaic.] swift or fleet.

• flight¹ + -y¹ 1545–55

flight′i•ly, adv. 
flight′i•ness, n. 
Synonyms

• 1. . mercurial, undependable, irresponsible.

Collins Concise English Dictionary © HarperCollins Publishers::

flighty / ˈflaɪtɪ/ adjective (flightier, flightiest)

1. frivolous and irresponsible; capricious; volatile
2. mentally erratic, unstable, or wandering

ˈflightiness noun