flat-out

adjective
\ ˈflat-ˌau̇t How to pronounce flat-out (audio) \

Definition of flat-out

 (Entry 1 of 2)

1 : being or going at maximum effort or speed
2 : out-and-out, downright it was a flat-out lie

flat out

adverb

Definition of flat out (Entry 2 of 2)

1 : in a blunt and direct manner : openly called flat out for revolutionNat'l Review
2 : at top speed or peak performance the car does 180 m.p.h. flat out
3 usually flat-out \ ˈflat-​ˌau̇t How to pronounce flat-out (audio) \ : absolutely, downright usually used as an intensive is just flat-out confusing

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Examples of flat-out in a Sentence

Adverb

I told him flat out that I have no intention of marrying him. We asked for more time but they refused us flat out. The car does 180 mph flat out.
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Recent Examples on the Web: Adverb

The government’s theory about how much cardiologists can honestly disagree is flat out wrong. Kyle Clark And Andrew George, WSJ, "A Second Opinion Becomes a Guilty Verdict," 27 Dec. 2018 Some of the statements offered up as evidence in the warrant were either flat out wrong or misleading, argued attorney Dean Atyia. Kristina Davis, sandiegouniontribune.com, "Rapper 'Tiny Doo' and college student arrested under controversial gang law get day in court against police," 22 May 2018 While some Leicester fans have welcomed the news, others are a bit skeptical, while some just flat out don't want him. SI.com, "£20m-Rated Championship Star Splits Opinion Among Foxes Fans After Leicester Links Surface," 6 Apr. 2018 In our opinion, the ideal white elephant gift is usually one that is funny but useless, useful but bizarre, or a flat out mix of both, which can take a lot of imagination to successfully pull off. SELF, "31 Funny, Totally Office-Appropriate White Elephant Gifts $20 and Under," 8 Nov. 2018 No one in the Mariners’ organization will say flat out that another stinker would result in Hernandez’s removal from the rotation. Larry Stone, The Seattle Times, "Mariners didn’t trade for a starting pitcher, putting Felix Hernandez’s next start under microscope," 31 July 2018 Another relative echoed that claim Wednesday, contending police flat out ignored the family's warnings. James Queally, latimes.com, "Experts say there was little reason for police to intercept Nasim Aghdam before YouTube shooting," 5 Apr. 2018 Lee was sleepy, uninspired and flat out boring to watch. Womansday.com Editors, Woman's Day, "American Idol—Who Will Win?," 26 May 2010 And a pending mother of the bride who knows flat out what an illusion romance can be — and yet indulges, despite everything, in a glorious dose of why not. Karen Stabiner, New York Times, "Romancing the Stone," 2 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'flat-out.' 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 flat-out

Adjective

1906, in the meaning defined at sense 1

Adverb

1932, in the meaning defined at sense 1

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Statistics for flat-out

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Time Traveler for flat-out

The first known use of flat-out was in 1906

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More Definitions for flat-out

flat-out

adjective

English Language Learners Definition of flat-out

 (Entry 1 of 2)

informal
chiefly US : absolute and complete
: greatest possible

flat out

adverb

English Language Learners Definition of flat out (Entry 2 of 2)

informal
chiefly US : in a very clear and direct way
: at the fastest possible speed
US, informal used to make a statement more forceful

flat-out

adjective
\ ˈflat-ˌau̇t\

Kids Definition of flat-out

1 : out-right entry 2 sense 1 That's a flat-out lie.— Phyllis Reynolds Naylor, Shiloh
2 : greatest possible a flat-out effort

flat out

adverb

Kids Definition of flat out

1 : in a very clear manner I told him flat out to leave.
2 : at top speed We worked flat out to finish.

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More from Merriam-Webster on flat-out

Rhyming Dictionary: Words that rhyme with flat-out

Thesaurus: All synonyms and antonyms for flat-out

Spanish Central: Translation of flat-out

Comments on flat-out

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