1.  insolent(s = adj.all) flip, impudent, snotty-nosed - marked by casual disrespect; "a flip answer to serious question"; "the student was kept in for impudent behavior"
Derived forms noun insolence₂, noun insolence₁

2.  insolent(s = adj.all) audacious, bald-faced, barefaced, bodacious, brassy, brazen, brazen-faced - unrestrained by convention or propriety; "an audacious trick to pull"; "a barefaced hypocrite"; "the most bodacious display of tourism this side of Anaheim"; "bald-faced lies"; "brazen arrogance"; "the modern world with its quick material successes and insolent belief in the boundless possibilities of progress"
Derived form noun insolence₁

1.  Deviating from that which is customary; novel; strange; unusual. [1913 Webster]
"If one chance to derive any word from the Latin which is insolent to their ears . . . they forthwith make a jest at it." [1913 Webster]
"If any should accuse me of being new or insolent." [1913 Webster]

2.  Haughty and contemptuous or brutal in behavior or language; overbearing; domineering; grossly rude or disrespectful; saucy; as, an insolent master; an insolent servant. Shak. [1913 Webster]
"Insolent is he that despiseth in his judgment all other folks as in regard of his value, of his cunning, of his speaking, and of his bearing." [1913 Webster]
"Can you not see? or will ye not observe . . .
How insolent of late he is become,
How proud, how peremptory?" [1913 Webster]

3.  Proceeding from or characterized by insolence; insulting; as, insolent words or behavior. [1913 Webster]
"Their insolent triumph excited . . . indignation."

insolent, adj. offensively contemptuous or arrogant; insulting.

Derivative:
insolence n. insolently adv.

Etymology:
ME, = 'arrogant', f. L insolens (as IN-(1), solens pres. part. of solere be accustomed)

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).