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presumptive

American  
[pri-zuhmp-tiv] / prɪˈzʌmp tɪv /

adjective

  1. affording ground for belief or presumption.

    presumptive evidence.

  2. based on likelihood or presumption.

    a presumptive title; the presumptive nominee.

  3. regarded as such by presumption; based on inference; assumed.

    a presumptive case of pneumonia.

  4. Embryology. pertaining to the part of an embryo that, in the course of normal development, will predictably become a particular structure or region.


presumptive British  
/ prɪˈzʌmptɪv /

adjective

  1. based on presumption or probability

  2. affording reasonable ground for belief

  3. of or relating to embryonic tissues that become differentiated into a particular tissue or organ

    presumptive epidermis

"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 presumptive

From the Late Latin word praesūmptīvus, dating back to 1555–65. See presumption, -ive


Explanation

Having a good reason to believe that something is true means that it is presumptive — you could call a person you assume will be nominated for school president the "presumptive nominee." After an election, when the votes are still being counted but it's clear who the winner will be, reporters often talk about that person as the presumptive winner. And if a doctor were fairly certain you had strep throat, she might call it her presumptive diagnosis. The Latin root word is praesumptionem, which means "confidence or audacity."

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Vocabulary lists containing presumptive

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.

See Examples For:

Along with this “absolute immunity,” the justices also granted “at least presumptive immunity” for other official acts.

From Salon ● Oct. 27, 2026

So, just as the Dodgers get the chance to start Skubal, the Brewers get the chance to start flamethrower Jacob Misiorowski, the presumptive NL Cy Young Award winner.

From Los Angeles Times ● Oct. 8, 2026

Many considered Winkleman, 54, to be chat show emperor Graham Norton's presumptive successor - not least because he seemed to be ushering her through himself.

From BBC ● Jul. 24, 2026

Anthropic is emerging as the presumptive front-runner in the race for AI supremacy, with faster growth and fundraising that could soon yield a higher valuation than rival OpenAI.

From The Wall Street Journal ● May 17, 2026

In 1790, however, despite the presumptive dreams of a continental empire, the Louisiana Purchase remained in the future and the vast trans-Mississippi region continued under Spanish ownership.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis

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