• synonyms


See more synonyms for sickness on Thesaurus.com
  1. a particular disease or malady.
  2. the state or an instance of being sick; illness.
  3. nausea; queasiness.
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Origin of sickness

before 1000; Middle English siknesse, seknesse, Old English sēocnesse. See sick1, -ness
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for sickness

malady, illness, ailment, syndrome, disease, disorder, infirmity, nausea, complaint, ill, indisposition, affection, affliction, bug, condition

Examples from the Web for sickness

Contemporary Examples of sickness

Historical Examples of sickness

British Dictionary definitions for sickness


  1. an illness or disease
  2. nausea or queasiness
  3. the state or an instance of being sick
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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 sickness


Old English seocnes "sickness, disease; a disease;" see sick (adj.) and -ness.

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Online Etymology Dictionary, © 2010 Douglas Harper

sickness in Medicine


  1. The condition of being sick; illness.
  2. A disease or an illness.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.