REPLACABLE
IRREPLACABLE
CO-OPERATIVE
UNCO-OPERATIVE
CAREFUL
CARELESS
INCREDIBLE
CREDIBLE
FEARLESS
FEARFUL
REACTIVATE
DEACTIVATE
TASTEFUL
DISTASTEFUL / TASTELESS
COMFORT
DISCOMFORT
COOKED
UNCOOKED
COMFORTABLE
UNCOMFORTABLE
LAWFUL
UNLAWFUL / LAWLESS
HAPPILY
UNHAPPILY
RESPONSIBLE
IRRESPONSIBLE
IMPLODE
EXPLODE
LEGAL
ILLEGAL
INTERESTING
UNINTERESTING
CONNECT
DISCONNECT
TERRESTRIAL
EXTRATERRESTRIAL
MORAL
IMMORAL
MAXIMUM
MINIMUM
IMPOSSIBLE
POSSIBLE
LIVELY
LIFELESS
LIKE
DISLIKE / UNLIKE
NECESSARY
UNNECESSARY
UNDERESTIMATE
OVERESTIMATE