Shamelessness.

(un-, prefix1 affix 6)

The quality of being destitute of shame or modesty; impudence.

(un-, prefix1 affix 10a.)

Misused for: Shamelessness. Obsolete.

figurative.

Blatant quality.

Of an offence: The quality or state of being flagrant; glaring shamefulness.

figurative. Taken as a type of insensibility to shame: hence, Effrontery, impudence, unblushingness.

Openness, effrontery, shamelessness.

figurative. Impudence, unblushingness. (Cf. brass, n. 4.)

Unabashed assurance; composed audacity or impudence.

Misused for: Shamelessness. Cf. shamefastness, n. 2.

Effrontery, impudence.