Last Updated：2025/11/21

(idiomatic) At top speed. / (idiomatic) Bluntly, no holds barred, totally, outright.

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flat out

Source Word

flat out

IPA(Pronunciation)

Adverb

idiomatic not-comparable

(idiomatic) At top speed. / (idiomatic) Bluntly, no holds barred, totally, outright.

Japanese Meaning

全速力で / 率直に、遠慮なく、全面的に

We drove flat out to get to the hospital before the surgery.

手術の前に病院に間に合うよう、私たちは全速力で運転した。

Sense（1）

(idiomatic) At top speed.

After 10 minutes of running flat out, he was out of breath.

Sense（2）

(idiomatic) Bluntly, no holds barred, totally, outright.

She thought it was best to tell him she didn't love him flat out.