Last Updated：2025/11/23

Dictionary quizzes to help you remember vocabulary

Dictionary quizzes to help you remember vocabulary

(idiomatic) A person or thing whose nature or value is a mystery. / Used other than figuratively or idiomatically: see unknown, quantity.

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unknown quantity

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Source Word

unknown quantity

idiomatic

Japanese Meaning

性質や価値が謎に包まれている人物または物体

What is this buttons?

The new candidate is something of an unknown quantity; no one knows how she'll perform under pressure.

Google Translation / DeepL Translation

新しい候補者は未知数の存在で、プレッシャーの下でどのように振る舞うかは誰にもわからない。

Sense（1）

(idiomatic) A person or thing whose nature or value is a mystery.

Whatever he had learned of himself was here of no avail. He was an unknown quantity.

Google Translation / DeepL Translation

Sense（2）

Used other than figuratively or idiomatically: see unknown, quantity.

Many of the applications of mathematics require that you identify an unknown quantity, assign a variable to that quantity, and then attempt to express another unknown quantity in terms of that variable.

Google Translation / DeepL Translation

unknown quantities

（ plural ）

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