Synonyms for Brazen:

adj.

all (adjective)
bodacious, barefaced, audacious, brassy, brazen-faced, insolent.
brash, unashamed (adjective)
forward, blatant, insolent, audacious, pert, unabashed, brassy, cheeky, bold, contumelious, unblushing, defiant, smart-alecky, nervy, shameless, tawdry, impertinent, saucy, barefaced.
disrespectful (adjective)
saucy.
immodest (adjective)
unashamed.
insolent (adjective)
disrespectful, outrageous, contemptuous, impolite, outspoken, discourteous, candid, impertinent, irreverent, insolent, presumptuous, defiant, cheeky, bold, contumelious, insubordinate, flagrant, rude, sarcastic, brash, callous, audacious, derisive, sacrilegious, mouthy, arrogant, saucy.
rash (adjective)
impetuous, irresponsible, thoughtless, reckless, audacious, incautious, hotheaded, careless, daredevil, impulsive, unheedful, desperado, rash, hectic, daring, imprudent, breakneck, brash, foolhardy, injudicious.
sassy (adjective)
mouthy.
vulgar (adjective)
gross, cockney, low, depraved, sordid, undignified, base, earthy, revolting, coarse, homespun, barbaric, glaring, tasteless, rank, graceless, garish, unseemly, inelegant, rough, brutish, shameless, idiomatic, outlandish, vulgar, rude, indelicate, tactless, chintzy, philistine, cheap, tawdry, salty, repulsive, crass, obscene, colloquial, sleazy, offensive, clumsy, in bad taste, broad, scandalous, common, degraded, ignoble, boorish, ill-bred, unpolished, raw, profane, ignominious, unrefined, animal, unbecoming, barnyard, crude, coarse-grained, gaudy.

n.

immoral, perverted, amoral, sinful, wicked, evil, deviant, unethical. Cast iron, bronze, gold, leaded, brass, ferrous, platinum, leaden, iron, metallic, golden. pert, contumelious, wise, pushy, Snippety, Familiar, assuming, attitude, uppity, assumptive, smart, courtesy, sassy, Malapert, snippy, Presuming, fresh, smart-alecky, uppish, boldfaced, overconfident, forward, nervy. right, respect, blatant, unabashed, unblushing, Brazenfaced. brazen (noun)
bold-faced, brassy, audacious, brazen-faced, unashamed, bodacious, barefaced, insolent.
impudent (noun)
forward.

Other synonyms:

sassy, Brazenfaced, boldfaced, ferrous, Snippety, pushy, contumelious, unabashed, smart-alecky, leaded. overconfident, uppity, Presuming, assumptive, Malapert, nervy, assuming, uppish, snippy, golden. forward, pert, leaden, blatant. platinum, Cast iron, bronze. iron, Familiar, gold. fresh. wise. impudent
smart.
shameless
unblushing.
Other relevant words:
iron, pert, leaden, nervy, pushy, brass, golden, gold, uppity, brassy, uppish, unashamed, Presuming, ferrous, bold-faced, assuming, bodacious, overconfident, assumptive, unabashed, Brazenfaced, sassy, Malapert, Familiar, fresh, bronze, brazen-faced, barefaced, forward, wise, boldfaced, Snippety, smart, smart-alecky, blatant, snippy, unblushing, platinum, metallic, contumelious.

Usage examples for brazen

  1. The distress of seeing the sky turn brazen and withhold its needful moisture from the earth, is not felt by the servant but by the master, who in time of scarcity and famine must support him who has served him in times of plenty and abundance." – The History of Don Quixote, Vol. II., Part 23 by Miguel de Cervantes Saavedra
  2. I'm the last man to preach, but, bedad, I don't like that chap, and I don't like that handsome, brazen face of his. – The Firm of Girdlestone by Arthur Conan Doyle