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

• Lexulous
• Wordscraper
• Wordosaur

ad. In a capricious manner; without caution or concern.

In a capricious manner; whimsically; irregularly.

ad. unpredictably

ad. in a capricious manner

"If I get tired -- if when you come back, you don't find me, just conclude, "capriciously," I have gone on some little errand of my own."

judiciously    maliciously