Japanese

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Kanji in this term
めつ > めっ
Grade: S
(ateji)
そう
Grade: 3
(ateji)
on'yomi

Etymology

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Compound of 滅相 +‎ +‎ ない. The kanji are an example of ateji (当て字).

Phrase

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滅相(めっそう)もない (messō mo nai

  1. (idiomatic) Don't be absurd; That's out of the question; Nonsense; Don't mention it
    Synonym: とんでもない