Similar words: mightiness, weightiness, almightiness, naughtiness, haughtiness, highlighting, lighting, light into. Meaning: ['flaɪtɪnɪs] 
n. the trait of acting unpredictably and more from whim or caprice than from reason or judgment.
n. the trait of acting unpredictably and more from whim or caprice than from reason or judgment. 
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1. I despair at the flightiness and whimsicality of my memory.
2. At present, I really regret my flightiness before to know ICIBA so late.
3. And that brings up another reason why the flightiness of contemporary feminism is a problem.
4. The flightiness and superficiality of Gemini is likely to be less apparent in this cycle than in the earlier ones, and the verbal and communicative side of Gemini more apparent.
5. They only had what passed for self-awareness, cloaking a flightiness and lethargy that was both childish and very real.
6. Astronomers aren't exactly sure why this happens, but the flightiness of the SEB is actually not unprecedented.
7. In this era characterized by too much pettiness and flightiness, it is really a miracle that we should find such imposing forcefulness and artistic excellence as shown in his works.
8. She could recognize her wild, desperate, defiant mood, the flightiness of her temper, and even some of the very cloud-shapes of gloom and despondency that had brooded in her heart.
9. She could recognise her wild, desperate, defiant mood, the flightiness of her temper, and even some of the very cloud-shapes of gloom and despondency that had brooded in her heart.
More similar words: mightiness, weightiness, almightiness, naughtiness, haughtiness, highlighting, lighting, light into, slighting, lighting up, slightingly, light industry, moonlighting, backlighting, strip lighting, take delight in, flight line, light intensity, lighting system, flightless, lighting fixture, electric lighting, indirect lighting, flight engineer, connecting flight, lightness, slightness, lightheadedness, lightheartedness, flight.