～わけがない/(わけはない)
wake ga nai wake wa nai
There is no way that; it is impossible that
Formation 接続
Plain-form verb or i-adjective + わけがない/わけはない. Present affirmative noun/na-adjective + な/である + わけがない.
Explanation 説明
Strongly rule out a possibility on the basis of reasoning or evidence. In conversation, ga may be omitted to give wake nai. V-nai wake ga nai is a double negative meaning there is no way that the action or event does not happen.
Examples 例文
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彼は今海外にいるから、今日ここに来るわけがありません。
He is abroad now, so there is no way he will come here today.
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鍵がかかっているのだから、誰でも入れるわけがありません。
It is locked, so there is no way just anyone can get in.
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一度も習っていないのに、急にできるわけはありません。
You have never learned it, so there is no way you can suddenly do it.
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こんな小さな箱に、全部入るわけがありません。
There is no way everything will fit in such a small box.
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朝から何も食べていないのだから、お腹がすかないわけがありません。
You have eaten nothing since morning, so there is no way you are not hungry.
How related patterns differ 比較
わけではない and わけでもない reject an interpretation or generalization. わけがない strongly rules out a possibility; わけない is its colloquial form. わけだ presents a logical conclusion, while わけにはいかない concerns duties or principles that prevent an action.
| Pattern | Meaning | Example |
|---|---|---|
| ～わけがない/(わけはない) | There is no way that; it is impossible that | 彼は今海外にいるから、今日ここに来るわけがありません。 He is abroad now, so there is no way he will come here today. |
| ～わけない | There is no way that (colloquial わけがない) | 彼は今海外にいるから、今日ここに来るわけないよ。 He is abroad now, so there is no way he will come here today. |
| ～わけだ | That explains why; it follows that; no wonder | 彼は十年日本に住んでいたんですね。日本語が上手なわけです。 So he lived in Japan for ten years. No wonder his Japanese is good. |
| ～わけではない | It does not mean that; not necessarily; not entirely | 甘い物が嫌いなわけではありませんが、今は食べたくありません。 It is not that I dislike sweets, but I do not want any now. |
| ～わけでもない | It is not particularly the case that; not necessarily either | 特に用事があるわけでもないので、家で休みます。 I do not have anything particular to do, so I will rest at home. |
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