negative prefix for 'rail'
derail
negative prefix for 'common'
uncommon
negative prefix for 'spell'
misspell
negative prefix for 'behave'
misbehave
negative prefix for 'believe'
disbelieve
negative prefix for 'legible'
illegible
negative prefix for 'mature'
immature
negative prefix for 'dependent'
independent
negative prefix for 'fortune'
misfortune
negative prefix for 'acceptable'
unacceptable
negative prefix for 'rational'
irrational
negative prefix for 'loyal'
disloyal
negative prefix for 'paid'
unpaid
negative prefix for 'patient'
impatient
negative prefix for 'motivate'
demotivate
negative prefix for 'expensive'
inexpensive
negative prefix for 'justice'
injustice
negative prefix for 'balance'
imbalance