not reassuring; tending to cause anxiety
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"
Causing worry; perturbing or vexing.