<p><strong>Noun:</strong></p><ul><li>A sudden, unpredictable change, as of one's mind or the weather.</li><li>A tendency to change one's mind without apparent or adequate motive; whimsicality; capriciousness.</li></ul><p><strong>Synonyms:</strong></p><ul><li>fancy, whim, notion, vagary, crotchet, quirk, caprice</li></ul>