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[kuh m-plek-si-tee] /kəmˈplɛk sɪ ti/
noun, plural complexities for 2.
the state or quality of being complex; intricacy:
the complexity of urban life.
something complex:
the complexities of foreign policy.
Origin of complexity
1715-25; complex + -ity
Related forms
intercomplexity, noun, plural intercomplexities.
overcomplexity, noun
supercomplexity, noun, plural supercomplexities. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for complexities
Contemporary Examples
Historical Examples
  • The network of complexities that was closing in upon Mr. Opp apparently affected his body more than his spirits.

    Mr. Opp Alice Hegan Rice
  • The complexities of the subject are too great to permit of dogmatism.

  • complexities annoy me; they irritate me; then this progressive feeling presently warms into anger.

  • Life that had seemed simple just then had since shown her its complexities.

    Otherwise Phyllis Meredith Nicholson
  • It will go deep enough down into all the complexities of our varying circumstances.

    Expositions of Holy Scripture Alexander Maclaren
British Dictionary definitions for complexities


noun (pl) -ties
the state or quality of being intricate or complex
something intricate or complex; complication
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
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Word Origin and History for complexities



1721, "composite nature," from complex (adj.) + -ity. Meaning "intricacy" is from 1790. Meaning "a complex condition" is from 1794.

Online Etymology Dictionary, © 2010 Douglas Harper
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