uncorrected
undisciplined
immune
scatheless
empire-building
unanswered
unavenged
unchallenged
unchecked
unconquered
undetected
unexamined
unexplored
unfelt
unheard
unobserved
unpardonable
unproved
unprovoked
unquestioned
unrecognized
unremarked
unreported
unrepresented
unreproved
unshackled
untrammelled
unwatched
punished