probably

adverb
prob·​a·​bly | \ˈprä-bə-blē, ˈprä(b)-blē\

Definition of probably 

: insofar as seems reasonably true, factual, or to be expected : without much doubt is probably happy it will probably rain

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Synonyms & Antonyms for probably

Synonyms

assumably, doubtless, likely, presumably

Antonyms

improbably

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Examples of probably in a Sentence

The impact probably added all but the last few percent of Earth's mass and set the stage for Earth's and the Moon's subsequent evolution. — Mark Wilson, Physics Today, February 2008 It was no secret that McKay preferred the thrill of victory to the agony of defeat, and that, along with his innocent optimism and snark-free sincerity, probably makes him hopelessly old-fashioned. — Richard Hoffer, Sports Illustrated, 16 June 2008 But what these newly inaugurated gym rats probably don't know is that besides buffing up their bodies for summer, they're also buffing up their brains. — Christen Brownlee, Science News, 25 Feb. 2006 It will probably rain today. They will probably be here soon. It was probably the best concert I've ever been to. There were probably about 150 people at the wedding. “Are you going to the picnic?” “Probably.” “Can you finish painting the room today?” “Probably not.”
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Recent Examples on the Web

And the time is probably right to invest in a HEPA air purifier, which can capture particles as small as 0.3 microns, ensuring that, no matter the state outside, your home is safe. Calin Van Paris, Vogue, "For Those Grappling With California Wildfires, Dangerous Air Quality Is a New Risk," 16 Nov. 2018 Which means, judging by the development of Kevin and Zoe’s investigation into Jack’s past, that Vietnam trip probably isn’t too far off either. Emma Dibdin, Country Living, "'This Is Us' Reveals the Heartbreaking Promise Miguel Made to Jack Before He Died," 24 Oct. 2018 Equatorial regions of the potentially life-supporting Europa, which harbors a huge ocean of salty liquid water beneath its icy shell, are probably studded with blades of ice up to 50 feet (15 meters) tall, a new study suggests. Mike Wall, Space.com, "Jupiter Moon Europa's Jagged Ice Towers Could Imperil Robot Landers," 8 Oct. 2018 Islamic State West Africa Province (ISWAP), a Nigerian jihadist group aligned with IS, has some 3,500 fighters—probably more than the original IS now has in Iraq and Syria. The Economist, "Jihadists are trying to take over the Sahel," 12 July 2018 That could easily cut the number interned in U.S. facilities by half, and probably much more. Margo Schlanger, Washington Post, "You’ve heard the calls to #AbolishICE. Here’s what that could mean.," 9 July 2018 The basic structure of his story is probably well-known by now. Vann R. Newkirk Ii, The Atlantic, "Sorry to Bother You Is a Dystopian Send-Up of Dystopias," 13 July 2018 Kennedy most probably had joined Deutsche Bank by that time, Offit said. Salvador Rizzo, chicagotribune.com, "There is an unfounded conspiracy theory about the Supreme Court and Trump Tower Chicago," 14 July 2018 All kinds of specific provisions and doctrines can be pressed into service for this purpose, the most interesting of which in the short term is probably going to be the First Amendment. Matthew Yglesias, Vox, "Brett Kavanaugh and the new judicial activism," 12 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'probably.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of probably

1600, in the meaning defined above

History and Etymology for probably

see probable entry 1

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Statistics for probably

Last Updated

20 Nov 2018

Look-up Popularity

Time Traveler for probably

The first known use of probably was in 1600

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More Definitions for probably

probably

adverb

English Language Learners Definition of probably

: very likely : almost certainly

probably

adverb
prob·​a·​bly | \ˈprä-bə-blē \

Kids Definition of probably

: very likely With dark clouds like those, it will probably rain.

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Comments on probably

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