shamelessness; brazenness
Used almost exclusively in the adverbial phrase 臆面もなく, meaning 'without shame' or 'brazenly'. The noun itself is rare and literary.
See also: 臆面もなく
He told a lie without any shame.
He brazenly refuses to admit his own mistake.
Compound of 臆 (oku, 'timidity') and 面 (men, 'face'), literally 'timid face'. The exact historical derivation is uncertain; the word is now fossilized in the phrase 臆面もなく.