perturbation
definition: the act of causing disorder
example:
speech part: noun
synonyms:
disruption
definition: a disposition that is confused or nervous and upset
example:
speech part: noun
synonyms:
fluster
definition: activity that is a malfunction, intrusion, or interruption
example: the term `distress' connotes some degree of perturbation and emotional upset
speech part: noun
synonyms:
disturbance
definition: (physics) a secondary influence on a system that causes it to deviate slightly
example:
speech part: noun
synonyms:
definition: an unhappy and worried mental state
example:
speech part: noun
synonyms:
upset
disturbance