Prefixes of adjective antonyms

For each adjective, guess the prefix that creates its opposite meaning
Quiz by Islandcarver
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Last updated: January 15, 2019
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First submittedJanuary 15, 2019
Times taken36
Average score80.0%
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responsible
irresponsible
responsive
unresponsive
probable
improbable
surmountable
insurmountable
moral
amoral
proportionate
disproportionate
reversible
irreversible
caring
uncaring
proven
unproven
proved
disproved
congruent
incongruent
historic
ahistoric
believed
disbelieved
believable
unbelievable
precise
imprecise
exact
inexact
legible
illegible
normal
abnormal
material
immaterial
conceivable
inconceivable
courteous
discourteous
apprehensible
inapprehensible
theoretical
atheoretical
tractable
intractable
symptomatic
asymptomatic
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