prob·​a·​bly | \ ˈprä-bə-blē How to pronounce probably (audio) , 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



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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 The November to December hunt probably takes place too late in the year for grizzly bears to seek out animal remains that hunters leave behind, according to researchers with the Interagency Grizzly Bear Study Team. USA TODAY, "MLK, robot unemployment, Python Bowl: News from around our 50 states," 14 Jan. 2020 But unlike some of the other Democratic candidates, Biden could probably withstand a modest finish in the Hawkeye State. Los Angeles Times, "What time is the January Democratic debate, and what’s at stake for the candidates onstage?," 13 Jan. 2020 In terms of safety, the short answer is that cervical stimulation is safe under normal circumstances—trying something out like this is probably not the smartest move during advanced pregnancy. Dr. Nan Wise, Glamour, "How to Have a Cervical Orgasm, According to a Neuroscientist," 12 Jan. 2020 With a few exceptions of which Mr Calhoun is probably one, Mr Welch mentored a fair share of duds (including Mr Immelt). The Economist, "Schumpeter The last GE Man," 11 Jan. 2020 IHS Markit said its analysis indicates an SA-15 missile, a short-range, surface-to-air missile mounted on a mobile tank-like vehicle, was probably used to down the aircraft. USA Today, "Iran plane crash: Visual evidence points to surface-to-air missile," 10 Jan. 2020 Another issue that will probably face voters in Wayne, Oakland and Washtenaw counties in November is a ballot proposal to improve and expand public transit in southeast Michigan., "A second term for Donald Trump? Michigan is at the center of the political universe," 9 Jan. 2020 One of the most poisonous animals on the planet, Colombia’s golden poison frog (Phyllobates terribilis) concentrates batrachotoxin—probably from tiny beetles in its diet—and secretes it from glands on its skin. National Geographic, "What’s the difference between a poisonous and venomous animal?," 7 Jan. 2020 The frozen river is probably safe to walk on, but unnecessary risk doesn’t pair well with tour operations in absurdly remote and frigid locations. David Wolman, Outside Online, "The Man Who Chases Auroras to Push Away Darkness," 6 Jan. 2020

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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Time Traveler for probably

Time Traveler

The first known use of probably was in 1600

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Statistics for probably

Last Updated

16 Jan 2020

Cite this Entry

“Probably.” The Dictionary, Merriam-Webster Inc., Accessed 23 January 2020.

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More Definitions for probably


How to pronounce probably (audio)

English Language Learners Definition of probably

: very likely : almost certainly


prob·​a·​bly | \ ˈprä-bə-blē How to pronounce probably (audio) \

Kids Definition of probably

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

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Comments on probably

What made you want to look up probably? Please tell us where you read or heard it (including the quote, if possible).


out of the ordinary or unreasonable

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