perturbation
A disquieting disruption
Perturbation is a state of being disturbed or unsettled.
The word applies to mental agitation—She tried to hide her perturbation at the unexpected news—and to disturbances in physical systems.
In astronomy and physics, a perturbation is a deviation from a regular orbit or path caused by an outside force.
The verb is perturb.
Disturbed, restless state
- anxietyPersistent apprehensive distress
- uneaseMild persistent worry
- distressSevere anxiety or suffering
- disquietMental unrest or agitation
nervousness · apprehension · worry · restlessness · trepidation · discomfort · edginess · jitters
Break in continuity
- interferenceUnwelcome involvement in affairs
- displacementRemoval from usual location
- dislocationForced out of position
- deviationDeparture from expected path
upset · imbalance · destabilization · disequilibrium · irregularity · anomaly · shift · alteration
Repeated back-and-forth movement
- fluctuationIrregular change over time
- deviationDeparture from expected path
- variationChange from a norm
- anomalyDeparture from the expected
eigenvalue · orbital · gravitational · magnetic · quantum · wavefunction · harmonic · resonance
Lack of proportion
- disequilibriumLack of balance or stability
- destabilizationCausing loss of stability
- offsetCompensate by opposing force
- deviationDeparture from expected path
shift · homeostasis · steady-state · stability · balance · equipoise · restoration · compensation
Curved celestial path
- trajectoryPath of moving object
- ephemerisCelestial body position chart
- perihelionOrbital point nearest sun
- aphelionFarthest point from sun
gravitational · planetary · celestial · satellite · asteroid · comet · lunar · stellar
agitation
Disturbed, restless state
- anxietyPersistent apprehensive distress
- uneaseMild persistent worry
- distressSevere anxiety or suffering
disquiet · nervousness · apprehension · worry · restlessness · trepidation · discomfort · edginess · jitters · flustered
interruption
Break in continuity
- interferenceUnwelcome involvement in affairs
- displacementRemoval from usual location
- dislocationForced out of position
deviation · upset · imbalance · destabilization · disequilibrium · irregularity · anomaly · shift · alteration · change
oscillation
Repeated back-and-forth movement
- fluctuationIrregular change over time
- deviationDeparture from expected path
- variationChange from a norm
anomaly · eigenvalue · orbital · gravitational · magnetic · quantum · wavefunction · harmonic · resonance · amplitude
imbalance
Lack of proportion
- disequilibriumLack of balance or stability
- destabilizationCausing loss of stability
- offsetCompensate by opposing force
deviation · shift · homeostasis · steady-state · stability · balance · equipoise · restoration · compensation · feedback
orbit
Curved celestial path
- trajectoryPath of moving object
- ephemerisCelestial body position chart
- perihelionOrbital point nearest sun
aphelion · gravitational · planetary · celestial · satellite · asteroid · comet · lunar · stellar · precession
- emotionsjoy, anger, fear, sadness, love
- agitationagitation, anxiety, worry, nervousness, unease
- worriesworry, concern, fear, anxiety, apprehension
- data privacydata privacy, GDPR, personal data, data protection, de-identification
- quantum physicsquantum mechanics, quantum superposition, quantum state, quantum states, quantum entanglement
- instabilityinstability, unsteadiness, shakiness, wobbliness, precariousness
perturbationcalm
Free from agitation
composure · tranquility · serenity · calmness · peace
perturbationstability
Resistance to displacement
equilibrium · steadiness · regularity · balance · homeostasis