N3 Contrast, Comparison, and Concession

~わけがない: meaning, usage and examples

~わけがない means: there's no way... / it's impossible that...

Updated 9 November 2026 · By the My Senpai team · Spotted a mistake? Tell us

Examples

1. 練習れんしゅうもしていないのに、上手じょうずなわけがない。

   There's no way I'm good at it when I haven't even practiced.

2. そんな簡単かんたんにできるわけがない。

   There's no way it can be done that easily.

3. こんなに高たかい時計とけい、私わたしに買かえるわけがない。

   There's no way I can afford such an expensive watch.

4. まじめな田中たなかさんが、うそをつくわけがない。

   There's no way Mr. Tanaka, who is so honest, would lie.

When to use it

Use this to strongly deny that something is possible or true, based on reasons you know: こんなに高たかい時計とけい、私わたしに買かえるわけがない (there's no way I can afford such an expensive watch). It is the speaker's firm belief that something cannot be the case. Often there is a reason before it, like のに or から.

Nuance

Conversational and emotional; in casual speech it often becomes わけない. It can sound strong or a little rude when said about someone else's opinion. It is a subjective judgment, so it shows the speaker's feelings, such as disbelief or frustration.

Compare

はずがない is close but based on logic or expectation: 鍵かぎをかけたから、開あいているはずがない. わけがない is more emotional and can be about yourself: 私わたしにできるわけがない. わけではない is only a partial denial: 嫌きらいなわけではない (it's not that I dislike it).

Tip: Don't confuse わけがない (no way) with わけではない (it's not that). One small particle changes a strong denial into a soft one.