不悪[ashikarazu] don't get me wrong, but ...
意識不明[ishikifumei] unconscious
一心不乱[isshinfuran] wholeheartedly
一定不変[itteifuhen] invariable
運動不足[undoubusoku] insufficient exercise

栄養不足[eiyoubusoku] malnutrition
過不足[kafusoku] excess or deficiency
回復不可能[kaifukufukanou] non-recoverable
気不味い[kimazui] unpleasant
健康不安[kenkoufuan] poor health

欠勤届け[kekkintodoke] report of an absence (at work)
欠席届け[kessekitodoke] report of a school absence
行き届く[ikitodoku] to be scrupulous
婚姻届[konintodoke] marriage registration
送り届ける[okuritodokeru] to send to

転入届[tennyuutodoke] notification of moving in
届く[todoku] to reach
届ける[todokeru] to deliver
届け出る[todokederu] to report
届け先[todokesaki] destination