unable	unable	un	able
unafraid	unafraid	un	afraid
unaware	unaware	un	aware
uncouth	uncouth	un	couth
unethical	unethical	un	ethical
unfair	unfair	un	fair
unimpressed	unimpressed	un	impressed
uninterested	uninterested	un	interested
unkempt	unkempt	un	kempt
unkind	unkind	un	kind
unopposed	unopposed	un	opposed
unpleasant	unpleasant	un	pleasant
unrelaxed	unrelaxed	un	relaxed
unripe	unripe	un	ripe