In grammar, a category that reflects the speaker's view of an event's reality, likelihood, or urgency. Often marked by special verb forms (inflections), moods include the indicative, for factual or neutral situations (e.g., “You did your work”); the imperative, to convey commands or requests (“Do your work”); and the subjunctive. The subjunctive's functions vary widely. It may express doubt, possibility, necessity, desire, or future time. In English it often indicates a condition contrary to fact (e.g., “If he were to work here, he would have to learn to be punctual”).
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In psychology, symptoms are said to be mood-congruent if they are consistent with a patient's mood or mental disorder. Conversely, they are said to be mood-incongruent if they are inconsistent with their primary mood.
For example, suicide ideation in a patient suffering from Major Depressive Disorder would be a mood-congruent symptom. Likewise, feelings of omnipotence or other delusions of grandeur would be considered mood-incongruent symptoms in the case of depression, while they would be mood-congruent in a person experiencing mania.