perturbador

Adjective

 * 1) disturbing causing distress or worry

Etymology
From.

Adjective

 * 1) perturbing
 * 2) disturbing, unsettling
 * 3) upsetting
 * 4) disruptive
 * 1) upsetting
 * 2) disruptive

Noun

 * 1) troublemaker
 * 2) agitator
 * 1) agitator