disconcerting

(verb) cause to feel embarrassment. Synonyms: confuse, flurry, disconcert, put off. Examples: "The constant attention of the young man confused her."

(verb) cause to lose one's composure. Synonyms: upset, discompose, untune, disconcert, discomfit.

(adj) causing an emotional disturbance. Synonyms: upsetting. Examples: "His disconcerting habit of greeting friends ferociously and strangers charmingly"- herb caen." "An upsetting experience."