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exhaustive

American  
[ig-zaws-tiv] / ɪgˈzɔs tɪv /

adjective

  1. exhausting a subject, topic, etc.; comprehensive; thorough.

    He published an exhaustive study of Greek vases.

  2. tending to exhaust or drain, as resources or strength.

    a protracted, exhaustive siege of illness.


exhaustive British  
/ ɪɡˈzɔːstɪv /

adjective

  1. comprehensive in scope; thorough

    an exhaustive survey

  2. tending to exhaust

"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

Other Word Forms

Etymology

Origin of exhaustive

First recorded in 1780–90; exhaust + -ive

Explanation

Exhaustive means performed comprehensively and completely. When you recruit a new employee (or spouse), you undertake an exhaustive search for the best talent. When you are exhaustive about something, you are testing all possibilities or considering all elements. If you want to become an attorney you will need an exhaustive knowledge of the leather bound books in the law library. When you exhaust something, you use it up entirely, so something exhaustive is complete. After your exhaustive tour of Rome, you're exhausted.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Exhaustive but not exhausting, the play unspools hundreds upon hundreds of biographical details, hurtling through history at a pace that elevates the material beyond rote recitation of fact.

From Seattle Times • May 7, 2024

Exhaustive archival searches failed to turn up photos of Frederick Marie, elected in 1868; William Keys, 1870; and Alfred Kennedy, 1878, DeSantis said.

From Washington Times • Oct. 24, 2020

Exhaustive notes on transportation networks, power grids, and factories hint at the Soviets’ obsession with infrastructure.

From National Geographic • Oct. 13, 2017

"Exhaustive" attempts to reproduce such transmission in primates have failed, he says, leading many to doubt whether such propagation is possible.

From Science Magazine • Sep. 9, 2015

The last account of him is, that he had gone to the Isle of Man, where he endeavoured to get up a railway on the Exhaustive Principle, but without effect.

From Chambers's Edinburgh Journal, No. 427 Volume 17, New Series, March 6, 1852 by Chambers, Robert