B

balanced

unbalanced

bearable

unbearable

beatable

unbeatable

beaten

unbeaten

becoming

unbecoming

befitting

unbefitting

beknown

unbeknown

believable

unbelievable

bending

unbending

biased

unbiased

blemished

unblemished

bounded

unbounded

breakable

unbreakable

breathable

unbreathable       

bridled

unbridled

broken

unbroken

C

called

uncalled

canny

uncanny

caring

uncaring

catchable

uncatchable

ceasing

unceasing

ceremoniously

unceremoniously

certain

uncertain

certainty

uncertainty

challenged

unchallenged

changed

unchanged

changing

unchanging

characteristic

uncharacteristic

charitable

uncharitable

checked

unchecked

civilized

uncivilized

clear

unclear

comfortable

uncomfortable

common

uncommon

communicative

uncommunicative

competitive

uncompetitive

completed

uncompleted

complicated

uncomplicated

complimentary

uncomplimentary

compromising

uncompromising

conceivable

unconceivable

conditional

unconditional

conditionally

unconditionally

confirmed

unconfirmed

conscious

unconscious

consciously

unconsciously

containable

uncontainable

controllable

uncontrollable

controlled

uncontrolled

controversial

uncontroversial

conventional

unconventional

convinced

unconvinced

cooked

uncooked

cool

uncool

cooperative

uncooperative

coordinated

uncoordinated

corrected

uncorrected