A
safe
unsafe
true
untrue
wanted
unwanted
lucky
unlucky
afraid
unafraid
active
inactive
agree
disagree
willing
unwilling
patient
impatient
healthy
unhealthy
accurate
unaccurate
certain
uncertain
appear
disappear
necessary
unnecessary
expensive
inexpensive
advantage
disadvantage
qualify
disqualify
interested
uninterested
correct
incorrect
worthy
unworthy
polite
impolite
dissatisfied
sufficient
insufficient
continue
discontinue
occupied
unoccupied