This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The characteristic of being disconcerted.

"The reader waits in vain for something besides the speaker's disconcertedness to manifest -- more "plot" of some kind."

assurance   

disconnectedness   

disarrangement    upset    demoralization    disconcertion    abashment    confusion    embarrassment    discomfiture