empty vessels make the most sound
low-information
layman
obfuscation
bad manners
mystification
ill-breeding
incoherence
ill-informed
agnosy
ignorantly
uninformedly
shallow brooks are noisy
Ignorance
tailism
agnorant
so what
stuff it
nescient
ignorati
who cares
DonoWall
ignoree
forgetfulness
neglectfully
you must be new here
incuriousness
working hard or hardly working
neglectedly
no idea
unwashed masses
cross as two sticks
know-nothing
obliviousness
overfamiliarity
I've got news for you
mislisten
do not want
slumber
tumbleweed
deafening silence
inconsistency
omissively
make a better door than a window
unamusement
cackle
go in one ear and out the other
the devil is a liar
clueless
dumdum