Significado
Expresses strong disbelief or that something is impossible.
Banco de exercicios
3 exercicios彼がそんなことをする（ ）。
この値段で買える（ ）。
日本語が初めての私がすぐにペラペラになる（ ）。
🎉 Pontuação: /3
The phrase combines the noun 'わけ' (wake), meaning 'reason' or 'circumstance,' with the negative auxiliary 'がない' (ganai), which is the negative form of 'がある' (ga aru), meaning 'there is.' Therefore, 'わけがない' literally means 'there is no reason/circumstance (for something to be true),' strongly conveying disbelief or impossibility. It implies that given the circumstances or common sense, the stated situation cannot logically exist or occur. This grammatical construction developed as a way to express strong negation and subjective certainty about an impossibility, becoming a common idiom in modern Japanese. The underlying concept of 'wake' as a logical ground or reason is ancient, and its combination with negation to express impossibility has been present in various forms in the language's history, solidifying into this specific idiomatic expression over time.
