perturbing
1. [ adjective ] causing distress or worry or anxiety
Synonyms: disturbing distressing troubling worrisome worrying distressful
Examples:

"distressing (or disturbing) news" "lived in heroic if distressful isolation" "a revelation that was most perturbing" "a new and troubling thought" "a worrisome predicament" "a worrying time"

Related terms: heavy
Similar spelling:   perturb
  perturbed
  perturbation
  pear_tree
  parturient
  perdurable
  parturiency