At this cosmic juncture you are urged to employ bolder, brassier elements of self in your dealings, all the time.
The cornet could be heard approaching nearer and nearer becoming brassier and brassier.
In the present preface the old music is sounded, but brassier and shriller; the wires are wearing.
"impudent," 1570s, from brass + -y (2). Cf. brazen. Sense of "debased and pretentious" is from 1580s, from brass as contrasted with gold; sense of "strident and artificial" is from 1865. Related: Brassily; brassiness.