as bold as brass
• confident to the point of impudence.
• "she marched into the library as bold as brass"
Similar:
brazen,
shameless,
forward,
brash,
impudent,
audacious,
cheeky,
saucy,
cocky,
pert,
impertinent,
insolent,
presumptuous,
immodest,
unabashed,
unreserved,
barefaced,
unshrinking,
defiant,
brass-necked,
bold as brass,
brassy,
sassy,
