perturbation

1. (noun) a disposition that is confused or nervous and upset
Synonyms: fluster
Related Words: discomposure

2. (noun) activity that is an intrusion or interruption; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"
Synonyms: disturbance
Related Words: activity, bother, fuss, hassle, magnetic storm, trouble

3. (noun) the act of causing disorder
Synonyms: disruption
Related Words: breakdown, dislocation, disturbance, surprisal, surprise, surprising

4. (noun) an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me"
Synonyms: disturbance, upset
Related Words: agitation



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