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perturbation

noun

1 perturbation

An unhappy and worried mental state.

synonyms: disturbance, upset.

Roget 315: agitation, stir, tremor, shake, ripple, jog, jolt, jar, jerk, shock, succussion, trepidation, quiver, quaver, ... show more

Roget 860: fear, timidity, diffidence, want of confidence; apprehensiveness, fearfulness etc. adj.; solicitude, anxiety, care, apprehension, misgiving; feeze [U.S.]; ... show more

Roget 171: energy, physical energy, force, power etc. 157; keenness etc. adj.; intensity, vigor, strength, elasticity; go; ... show more

Roget 61: derangement etc. v.; disorder etc. 59; evection, discomposure, disturbance; disorganization, deorganization; dislocation; perturbation, interruption; ... show more

Roget 824: excitation of feeling; mental excitement; suscitation, galvanism, stimulation, piquance, piquancy, provocation, inspiration, calling forth, infection; animation, agitation, perturbation; ... show more



2 perturbation

physics A secondary influence on a system that causes it to deviate slightly.

3 perturbation

Activity that is a malfunction, intrusion, or interruption:
— The term `distress' connotes some degree of perturbation and emotional upset.

synonym: disturbance.

4 perturbation

A disposition that is confused or nervous and upset.

synonym: fluster.

Roget 825: excitability, impetuosity, vehemence; boisterousness etc. adj.; turbulence; impatience, intolerance, nonendurance; irritability etc. (irascibility) 901; ... show more

Roget 821: feeling; suffering etc. v.; endurance, tolerance, sufferance, supportance, experience, response; sympathy etc. (love) 897; ... show more

Polish: turbacja

5 perturbation

The act of causing disorder.

synonym: disruption.

Dutch: ontregeling


Moby thesaurus: ado, aggravation, agitation, all-overs, angst, animation, anxiety, anxiety hysteria, anxiety neurosis, anxious bench, anxious concern, anxious seat, anxiousness, apprehension, apprehensiveness, arousal, arousing, baffle, bafflement, befuddlement ... show more.

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