prefixes (1x1=1)
Usage of the suitable prefix for the following words to make opposite.
Efficient x inefficient
wise x unwise
pure x impure
honest x dishonest
correct x incorrect
certain x uncertain 
possible x impossible
respect x disrespect
accurate x inaccurate
pleasant x unpleasant
polite x impolite
satisfaction x dissatisfaction 
complete x incomplete
interesting x uninteresting 
patience x impatience 
comfort x discomfort
sincere x insincere
holy x unholy
pertinent x impertinent
continue x discontinue
justice x injustice 
popular x unpopular
perfect x imperfect
honest x dishonest
decent x indecent
grateful x ungrateful
proper x improper
prove x disprove 
direct x indirect
important x unimportant 
mortal x immortal
believe x disbelieve 
dependent x independent 
done x undone 
probable x improbable 
obey x disobey
vulnerable x invulnerable 
do x undo 
appear x disappear
curable x incurable 
worthy x unworthy 
honour x dishonour
luck x illuck 
like x unlike 
agree x disagree
legal x illegal 
usual x unusual 
appear x disappear
guide x misguide 
able x unable 
order x disorder
lead x mislead 
just x unjust 
place x misplace 
lucky x unlucky 
encourage x discourage
judge x misjudge 
happy x unhappy 
fortune x misfortune 
countable x uncountable
understand x misunderstand 
ripe x unripe
vegetarian x non-vegetarian 
successful x unsuccessful
violence x non-violence 
 fortunate x unfortunate
controversial x non-controversial 
satisfied x unsatisfied
clockwise x anticlockwise 
hesitantly x decisively
happily x unhappily
responsible x irresponsible 
deserving x undeserving
relevant x irrelevant 
regular x irregular 
comfortable x uncomfortable
aware x unaware
proportionate x disproportionate
like x dislike
literate x illiterate 
known x unknown 
advantage x disadvantage
active x inactive 
civilized x uncivilized