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 facetious or flippant manner; in a manner that treats serious issues with deliberately inappropriate humor

ad. In a pleasantly humorous or playful fashion.

In a facetious manner; merrily; waggishly; wittily; with pleasantry.

ad. not seriously

"Indeed, Asperger’s is all over SF, nor did I use the term facetiously in this case, since I suspect (albeit only from a remove, and based only on my interactions with him) that Burt may have some variation of Asperger’s, which would explain (although not necessarily excuse) some of his truculent behavior and inability to process why others might have objections to his actions."

facetiousness    facetious   

flippantly    playfully    jocularly    humorously