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secure
insecure
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finite
infinite
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active
inactive
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pleased
displeased
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possible
impossible
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stable
unstable
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certain
uncertain
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realistic
unrealistic
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rational
irrational
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tolerant
intolerant
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voluntary
involuntary
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substantial
unsubstantial
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infected
disinfected
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appropriate
inappropirate
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exposed
unexposed
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available
unavailable
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logical
illogical
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clear
unclear
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legal
illegal
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aware
unaware
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audible
inaudible
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professional
unprofessional
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comparable
incomparable
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complete
incomplete
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perfect
imperfect
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friendly
unfriendly
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accesible
unaccesible
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focused
unfocused
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legible
illegible
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sufficient
insufficient
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credible
incredible
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flexible
inflexible
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resolved
unresolved
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patient
impatient
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regular
irregular
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visible
invisible
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known
unknown
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helpful
unhelpful
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predictable
unpredictable
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decisive
indecisive
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correct
incorrect
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significant
insignificant
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accurate
inaccurate
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mature
immature
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convential
unconvential
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