distressing

adj

1. Causing distress; upsetting; distressful.

   “The details of the ordeal can be distressing to some readers.”

   “One end of the east-west building is wet, the other windy, and at present there is smoke abounding, too; but these distressing yard elements can be completely excluded at each end by full-width folding doors [...].”

verb

1. (form-of, gerund, participle, present)present participle and gerund of distress