mishearer
misreader
misconceiver
misconstruer
misperceiver
misinformer
misspeaker
misaligner
mispronouncer
miseducator
misjudger
misfirer
misunderstander
mislayer
misdescriber
hearo
misstater
misapplier
overhearer
misteacher
misbehaver
misidentifier
misdealer
misquoter
misreporter
misdirector
mishandler
belittler
contradicter
deludee
lapsus auris
discommender
mislabeler
underpredictor
misappropriator
noncomprehender
perplexer
mismanager
underreader
disinformer
disinformant
would lose one's head if it wasn't attached
misplacer
parroter
blindfold
disgracer
blunderer
misshaper
undeceiver
misrepresenter