disturbance

(noun) activity that is a malfunction, intrusion, or interruption. Synonyms: perturbation. Examples: "The term `distress' connotes some degree of perturbation and emotional upset." "He looked around for the source of the disturbance." "There was a disturbance of neural function."

(noun) an unhappy and worried mental state. Synonyms: perturbation, upset. Examples: "There was too much anger and disturbance." "She didn't realize the upset she caused me."

(noun) a disorderly outburst or tumult. Synonyms: disruption, commotion, flutter, hurly burly, to-do, hoo-ha, hoo-hah, kerfuffle. Examples: "They were amazed by the furious disturbance they had caused."

(noun) a noisy fight. Synonyms: affray, fray, ruffle.

(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. Synonyms: mental disorder, mental disturbance, psychological disorder, folie.

(noun) electrical or acoustic activity that can disturb communication. Synonyms: noise, interference.