Vagary

1. (n.) A wandering or strolling.

2. (n.) Hence, a wandering of the thoughts; a wild or fanciful freak; a whim; a whimsical purpose.

Thesaurus Entries

aberration, bee, boutade, brainstorm, capriccio, caprice, circuitousness, conceit, crank, craze, crazy idea, crosswiseness, crotchet, daydream, declination, deflection, deflexure, deviance, deviation, deviousness, diagonality, digression, divagation, divergence, dream, excursion, fad, fancy, fantastic notion, fantasy, flimflam, fool notion, freak, freakish inspiration, harebrained idea, humor, indirection, indirectness, kink, maggot, megrim, nonconformity, notion, obliqueness, obliquity, passing fancy, quirk, skewness, squint, toy, transverseness, whim, whim-wham, whimsy