Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun perturbation

5 senses of perturbation

Sense 1
disturbance, perturbation, upset -- (an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me")
       => agitation -- (a mental state of extreme emotional disturbance)

Sense 2
perturbation -- ((physics) a secondary influence on a system that causes it to deviate slightly)
       => influence -- (the effect of one thing (or person) on another; "the influence of mechanical action")

Sense 3
perturbation, disturbance -- (activity that is a malfunction, intrusion, or interruption; "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")
       => activity -- (any specific behavior; "they avoided all recreational activity")

Sense 4
perturbation, fluster -- (a disposition that is confused or nervous and upset)
       => discomposure -- (a temperament that is perturbed and lacking in composure)

Sense 5
disruption, perturbation -- (the act of causing disorder)
       => disturbance -- (the act of disturbing something or someone; setting something in motion)