| noun | activity that is a malfunction, intrusion, or interruption “the term `distress' connotes some degree of perturbation and emotional upset” |
| noun | an unhappy and worried mental state “there was too much anger and disturbance” |
| noun | a disorderly outburst or tumult “they were amazed by the furious disturbance they had caused” |
| noun | a noisy fight |
| noun | the act of disturbing something or someone; setting something in motion |
| noun | (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness |
| noun | electrical or acoustic activity that can disturb communication |
| disturb | verb | move deeply |
| perturb | verb | disturb in mind or make uneasy or cause to be worried or alarmed |
| upset | verb | cause to lose one's composure |