Here we go
justice
injustice
sufficient
insufficient
logical
illogical
legal
illegal
eligible
ineligible
polite
impolite
literate
illiterate
mature
immature
reversible
irreversible
essential
nonessential
approve
disapprove
trust
mistrust / distrust
regular
irregular
mount
dismount
reconcilable
irreconcilable
behave
misbehave
honest
dishonest
appear
disappear
orient
disorient
mobile
immobile
possible
impossible
experienced
inexperienced
complete
incomplete
accurate
inaccurate
legible
illegible