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