一喜一憂[ikkiichiyuu] now rejoicing, now worrying
内憂[naiyuu] internal or domestic troubles
内憂外患[naiyuugaikan] troubles both at home and abroad
もの憂い[monoui] languid
憂い[ui] unhappy

憂い[urei] sorrow
憂い顔[ureigao] sad face
憂い悩む[ureinayamu] to be grievously troubled
憂さを晴らしに[usawoharashini] for amusement
憂欝症[yuuutsushou] melancholia

雲鬢花顔[unbinkagan] beautiful woman (metaphorical)
横顔[yokogao] face in profile
温顔[ongan] kindly face
なに食わぬ顔[nanikuwanukao] innocent look
我物顔[wagamonogao] looking or acting as if one owned the place

汗顔[kangan] ashamed
顔から火が出る[kaokarahigaderu] to be extremely embarrassed
顔を顰める[kaowoshikameru] to grimace
顔を潰す[kaowotsubusu] to make somebody lose face