effrontery(n = noun.attribute) assumption, presumption, presumptuousness - audacious (even arrogant) behavior that you have no right to; "he despised them for their presumptuousness"
is a kind of audaciousness, audacity
has particulars: uppishness, uppityness

   Impudence or boldness in confronting or in transgressing the bounds of duty or decorum; insulting presumptuousness; shameless boldness; barefaced assurance. [1913 Webster]
"Corruption lost nothing of its effrontery."

effrontery, n. (pl. -ies)
1 shameless insolence; impudent audacity (esp. have the effrontery to).
2 an instance of this.

Etymology:
F effronterie f. effront{eacute} ult. f. LL effrons -ontis shameless (as EX-(1), frons forehead)

N  insolence, haughtiness, arrogance, airs, overbearance, domineering, tyranny, impertinence, sauciness, flippancy, dicacity, petulance, procacity, bluster, swagger, swaggering, bounce, terrorism, assumption, presumption, beggar on horseback, usurpation, impudence, assurance, audacity, hardihood, front, face, brass, shamelessness, effrontery, hardened front, face of brass, assumption of infallibility, saucebox, insolent, haughty, arrogant, imperious, magisterial, dictatorial, arbitrary, high-handed, high and mighty, contumelious, supercilious, overbearing, intolerant, domineering, overweening, high-flown, flippant, pert, fresh, cavalier, saucy, forward, impertinent, malapert, precocious, assuming, would-be, bumptious, bluff, brazen, shameless, aweless, unblushlng, unabashed, brazen, boldfaced-, barefaced-, brazen-faced, dead to shame, lost to shame, impudent, audacious, presumptuous, free and easy, devil-may-care, rollicking, jaunty, janty, roistering, blustering, hectoring, swaggering, vaporing, thrasonic, fire eating, full of sound and fury, with a high hand, ex cathedra, one's bark being worse than his bite, beggars mounted run their horse to death, quid times? Caesarem vehis, wagahai wa (expressing superiority).