• synonyms


[uh-duhl-ter-uh s]
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  1. characterized by or involved in adultery; illicit: an adulterous relationship.
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Origin of adulterous

1400–50; adulter(y) + -ous; replacing late Middle English avoutrious
Related formsa·dul·ter·ous·ly, adverbun·a·dul·ter·ous, adjectiveun·a·dul·ter·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for adulterous

illicit, cheating, extracurricular, immoral, speedy, two-faced, two-timing, unchaste, moonlighting

Examples from the Web for adulterous

Contemporary Examples of adulterous

Historical Examples of adulterous

British Dictionary definitions for adulterous


  1. of, characterized by, or inclined to adultery
  2. an obsolete word for adulterate (def. 2)
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Derived Formsadulterously, adverb
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 adulterous


c.1400, avoutrious "addicted to adultery," from obsolete verb adulter (see adulterer) + -ous.

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Online Etymology Dictionary, © 2010 Douglas Harper