Translation guide
The English phrase 'fall flat' is used in several distinct ways: for a joke or attempt that fails to get the intended reaction, for a person falling forward onto their face, and for hair or objects lying flat. This guide covers natural Japanese expressions for each meaning.
When a joke, performance, plan, or attempt fails to get the desired reaction or result, often in a disappointing or embarrassing way.
Literally 'to slip', this is the most common and natural way to say a joke or funny comment falls flat. It implies the joke was not funny and the atmosphere became awkward.
彼のジョークは完全に滑った。
His joke completely fell flat.
あの冗談、滑ってたよ。
That joke fell flat, you know.
From 受ける (to be well-received), this negative form means 'not go over well' or 'not be popular'. Commonly used for jokes or performances that fail to get laughs.
そのネタ、全然ウケなかった。
That material totally fell flat.
A more formal way to say a plan or attempt ended in failure. Not specifically for jokes, but for any endeavor that falls flat.
新製品の販売戦略は失敗に終わった。
The sales strategy for the new product fell flat.
Literally 'end as a misfire', this is used for attempts that fail to produce the expected result, like a joke that bombs. Somewhat literary.
彼の渾身のギャグは不発に終わった。
His all-out gag fell flat.
When a person falls forward and lands flat on their face, often suddenly or clumsily.
Literally 'fall from the face', meaning to fall face-first. Natural for describing someone tripping and landing flat on their face.
彼はつまずいて顔から倒れた。
He tripped and fell flat on his face.
Means to fall forward, pitching onto one's face. Slightly more descriptive than 顔から倒れる.
階段で前のめりに倒れてしまった。
I fell flat on my face on the stairs.
More emphatic, using 顔面 (face surface). Often used in dramatic or comedic contexts.
氷の上で顔面から倒れた。
I fell flat on my face on the ice.
When something like hair, a collar, or an object lies flat against a surface, often after being styled or positioned.
Means to become flat and pressed down. Commonly used for hair that has lost volume or objects that are squashed flat.
湿気で髪がぺたんこになった。
My hair fell flat from the humidity.
Specifically for hair that gets flat or messy from sleeping. Literally 'bed habits attach'.
朝起きたら髪に寝癖がついていた。
When I woke up, my hair was flat from sleeping.
A general term for becoming flat. Can be used for objects or surfaces, but less common for hair.
箱が潰れて平らになった。
The box was crushed and fell flat.
Do not translate 'fall flat' directly as 平らに落ちる or similar. It will not be understood idiomatically. Use the context-appropriate expressions above.