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How to Say ‘Tonight, I'll show my sincerity through actions.’ in Japanese

今夜は行動でまじめさを見せます。

konya wa koudou de majime sa o mise masu

[kon-yah wah koh-doh deh mah-jee-meh sah oh mee-seh mahss]

🇯🇵 In Japan: This sounds deliberately suave and a little dramatic, so it fits flirtation more than ordinary conversation. In real life, it works best half-jokingly; too serious and it may come off as trying too hard.

Phrase Breakdown

今夜

konya

[kon-yah]

tonight

Sets the time frame for the speaker's intention.

Example

今夜は行動でまじめさを見せます、と約束しました。

I promised, 'Tonight I'll show my sincerity through actions.'

wa

[wah]

topic marker

Marks 今夜 as the topic: 'as for tonight.'

Example

今夜は行動でまじめさを見せます。

Tonight, I'll show my sincerity through actions.

行動で

koudou de

through actions; by behavior

Indicates the method used to show something, here “by actions.”

Example

言葉ではなく行動で示す。

Show it with actions, not words.

Words in this phrase

行動

koudou

[koh-doh]

actions; behavior

Emphasizes proving sincerity through what you do.

Example

今夜は行動でまじめさを見せますから、見ていてください。

Tonight I'll show my sincerity through actions, so please watch.

de

[deh]

by; with; through

Shows the means: sincerity is shown through actions.

Example

今夜は行動でまじめさを見せますよ。

Tonight I'll show my sincerity through actions, you know.

まじめさ

majime sa

seriousness; sincerity; earnestness

The noun form of まじめ, referring to the quality of being serious or sincere.

Example

彼のまじめさは伝わります。

His sincerity comes across.

Words in this phrase

まじめ

majime

[mah-jee-meh]

serious; sincere

Refers to being earnest and genuine in romantic interaction.

Example

今夜はまじめさを見せます。

Tonight I'll show my sincerity.

sa

[sah]

-ness; quality

Turns まじめ into the noun 'sincerity' or 'seriousness.'

Example

今夜は行動でまじめさを見せますね。

Tonight I'll show my sincerity through actions, okay?

o

[oh]

object marker

Marks まじめさ as the thing being shown.

Example

今夜は行動でまじめさを見せます、と言いました。

I said, 'Tonight I'll show my sincerity through actions.'

見せます

mise masu

I will show; I will make it visible

Polite form of 見せる, meaning to show or demonstrate.

Example

結果で見せます。

I'll prove it with results.

Words in this phrase

見せ

mise

[mee-seh]

show

Means to demonstrate sincerity visibly rather than only saying it.

Example

今夜は行動でまじめさを見せますから安心してください。

Tonight I'll show my sincerity through actions, so please feel at ease.

ます

masu

[mahss]

polite verb ending

Gives the sentence a respectful and earnest tone.

Example

今夜は行動でまじめさを見せます、と決めました。

I decided, 'Tonight I'll show my sincerity through actions.'

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