费神，费心（trouble的现在分词 ）；使烦恼， 使忧虑；令人不安的；令人烦恼的；

1. (令人困擾)：tired (感到很累) | 7. troubling (令人困擾) | troubled (感到困擾)

1. causing distress or worry or anxiety

    e.g. distressing (or disturbing) news
           lived in heroic if something distressful isolation
           a disturbing amount of crime
           a revelation that was most perturbing
           a new and troubling thought
           in a particularly worrisome predicament
           a worrying situation
           a worrying time

    Synonym: distressingdistressfuldisturbingperturbingworrisomeworrying