This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
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n. An extravagant or erratic notion or action.

n. An erratic notion or action.

n. An impulsive or illogical desire; a caprice.

n. A wandering or strolling.

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

To gad; range.

n. A wandering or strolling.

n. A wandering of the thoughts; a wild freak; a whim; a whimsical purpose.

n. an unexpected and inexplicable change in something (in a situation or a person's behavior, etc.)

"He can call them “simple” tests, but this kind of vagary is far from simple to implement into a budget."

alteration    modification    change   

vagarity   

whim    capric   

whim    quirk    freak    eccentricity    vicissitudes    imaginings    inconsistency    oddity    peculiarity    prank