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uncountable
(rare) Unpleasantness; displeasure.
(psychology) A sense of internal discomfort opposed to pleasure, produced by impeded impulses from the ego. quotations
The life of the psyche also has at its disposal wishes whose fulfilment arouses unpleasure [translating Unlust] – which seems a contradiction, but can be explained if we take into account the presence of the two psychical agencies and the censorship prevailing between them.
1999, Sigmund Freud, translated by Joyce Crick, The Interpretation of Dreams, Oxford, published 2008, page 182