1. [ noun ] an unhappy and worried mental state
Synonyms: disturbance upset

"there was too much anger and disturbance" "she didn't realize the upset she caused me"

Related terms: agitation disturb upset
2. [ noun ] a disposition that is confused or nervous and upset
Synonyms: fluster
Related terms: discomposure fluster perturb
3. [ noun ] activity that is an intrusion or interruption
Synonyms: disturbance

"he looked around for the source of the disturbance" "there was a disturbance of neural function"

Related terms: activity fuss magnetic_storm
4. [ noun ] (physics) a secondary influence on a system that causes it to deviate slightly
Related terms: influence variation physics
5. [ noun ] the act of causing disorder
Synonyms: disruption
Related terms: disturbance dislocation surprise perturb
Similar spelling:   perturbing