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diseased

[dih-zeezd]
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adjective
  1. having or affected with disease.
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Origin of diseased

1425–75; late Middle English disesed; compare Anglo-French diseasé. See disease, -ed2
Related formsnon·dis·eased, adjectiveun·dis·eased, adjective
Can be confuseddeceased diseased

disease

[dih-zeez]
noun
  1. a disordered or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection, poisons, nutritional deficiency or imbalance, toxicity, or unfavorable environmental factors; illness; sickness; ailment.
  2. any abnormal condition in a plant that interferes with its vital physiological processes, caused by pathogenic microorganisms, parasites, unfavorable environmental, genetic, or nutritional factors, etc.
  3. any harmful, depraved, or morbid condition, as of the mind or society: His fascination with executions is a disease.
  4. decomposition of a material under special circumstances: tin disease.
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verb (used with object), dis·eased, dis·eas·ing.
  1. to affect with disease; make ill.
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Origin of disease

1300–50; Middle English disese < Anglo-French dese(a)se, disaise; see dis-1, ease
Related formsdis·eas·ed·ly, adverbdis·eas·ed·ness, noun

Synonyms

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1. morbidity, complaint, derangement, distemper, indisposition, infirmity, disorder, malady.

Antonyms

1. health. 5. cure.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for diseased

diseased

adjective
  1. having or affected with disease
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disease

noun
  1. any impairment of normal physiological function affecting all or part of an organism, esp a specific pathological change caused by infection, stress, etc, producing characteristic symptoms; illness or sickness in general
  2. a corresponding condition in plants
  3. any situation or condition likened to thisthe disease of materialism
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Related formsRelated adjective: pathological

Word Origin

C14: from Old French desaise; see dis- 1, ease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for diseased

adj.

late 15c., past participle adjective from Middle English verb disesen "to make uneasy; inflict pain" (mid-14c.), later "to have an illness or infection" (late 14c.); "to infect with a disease" (late 15c.), from disease (n.).

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disease

n.

early 14c., "discomfort, inconvenience," from Old French desaise "lack, want; discomfort, distress; trouble, misfortune; disease, sickness," from des- "without, away" (see dis-) + aise "ease" (see ease). Sense of "sickness, illness" in English first recorded late 14c.; the word still sometimes was used in its literal sense early 17c.

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Online Etymology Dictionary, © 2010 Douglas Harper

diseased in Medicine

diseased

(dĭ-zēzd)
adj.
  1. Affected with disease.
  2. Unsound or disordered.
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disease

(dĭ-zēz)
n.
  1. A pathological condition of a body part, an organ, or a system resulting from various causes, such as infection, genetic defect, or environmental stress, and characterized by an identifiable group of signs or symptoms.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.