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

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n. The property of being impeccable.

n. The quality of being impeccable; exemption from sin, error, or offense.

n. The character of being impeccable; exemption from liability to do wrong.

n. the quality of being without an error or fault

n. the quality of being exempt from sin or incapable of sinning

"I have never pretended to impeccability, which is an admission that I may very naturally offend."

correctness    righteousness   

effectuation    temperateness    homburg    incorrigibility    guilelessness    unbricker    inerrancy    peacefulness    uprush    espousal