flat out

[flat-out] / ˈflætˈaʊt /

ADVERB

at top speed

Synonyms

WEAK

all out at full speed at full throttle bluntly directly full-bore openly peak performance wide open

flat-out

ADVERB

at top speed

Synonyms

WEAK

all the way all-out at a good clip for all one's worth full blast head over heels in full gallop lickety-split the whole nine yards to the max unrestrainedly wide open without reservation

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.

In a subsequent statement in Parliament, Defence Minister Luke Pollard insisted the government was "not waiting" on the investment plan to announce further defence projects, but was "working flat out to" get the document published.

From BBC • Apr. 15, 2026

Jacobson says they have computers now working flat out generating brackets for this year’s competition.

From MarketWatch • Mar. 18, 2026

One academic asked me flat out, if I loved Iran so much, why was I badmouthing it?

From The Wall Street Journal • Feb. 27, 2026

"As a pure driver, I enjoy driving flat out," Verstappen said.

From BBC • Feb. 13, 2026

Then he flat out lied: “The boys are not exceptional.”

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

flat out

Example Sentences

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