wor·ri·some /-səm/
  (a.)令人煩惱的,麻煩的,勞碌命的
  Wor·ri·some a. Inclined to worry or fret; also, causing worry or annoyance.
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  worrisome
       adj 1: not reassuring; tending to cause anxiety [syn: unreassuring]
              [ant: reassuring]
       2: causing distress or worry or anxiety; "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" [syn: distressing,
           distressful, disturbing, perturbing, troubling, worrying]