GNU Collaborative International Dictionary of English
Found one definition
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Sauciness, n. The quality or state of being saucy; that which is saucy; impertinent boldness; contempt of superiors; impudence.
[1913 Webster]
Your sauciness will jest upon my love. Shak.
[1913 Webster]
Syn. -- Impudence; impertinence; rudeness; insolence. See Impudence.
[1913 Webster]