often ill 常生病的；多病的；爱闹病的 not looking healthy and strong 不健壮的；体弱的；有病容的 that makes you feel sick, especially because it is too sweet or full of false emotion （尤指太甜或充斥着虚情假意）令人生厌的，让人恶心的 (of colours 颜色 unpleasant to look at 难看的；看着不舒服的 a sickly green colour 一种难看的绿色
Word Originlate Middle English: probably suggested by Old Norse sjúkligr.