ETYM Old Eng. brasen, as. braesen. Related to Brass.
Made of or resembling brass (as in color or hardness).
1. Made of brass.
2. Sounding harsh and loud like struck brass; of the color of polished brass.
3. Marked by contemptuous boldness.

ETYM French, from Latin impertinens, -entis; pref. im- not + pertinens. Related to Pertinent.
Characterized by a lightly pert and exuberant quality; SYN. irreverent, pert, saucy.

ETYM Latin impudens, -entis; pref. im- not + pudens ashamed, modest, p. pr. of pudere to feel shame: cf. French impudent.
Marked by casual disrespect; SYN. insolent, snotty-nosed, flip.

ETYM French insolent, Latin insolens, -entis, pref. in- not + solens accustomed, p. pr. of solere to be accustomed.
1. Haughty and contemptuous or brutal in behavior or language; overbearing; domineering; grossly rude or disrespectful.
2. Proceeding from or characterized by insolence; insulting.