inappropriacy
off the mark
pedantry
wrongfulness
puzzlement
incomprehensibility
mystification
bafflement
noninstruction
bemusement
obfuscation
maleducation
misgrasp
Pecksniffery
bewilderment
befuddlement
incorrectness
wrongmindedness
duplicitous
unpropriety
misstatement
misrecitation
misauthorization
misarticulation
orthopedagogy
suaku
system error
abusage
misapprehend
indocile
misconceivedness
unteach
lapsus auris
jiggery-pokery
misdistinguish
misclass
misenlightened
ungrammatical
ill-informed
inaccurateness
unenlightenment
know better
play fast and loose
erroneousness
perplexity
misinformedness
error/mistake distinction