What does 大間違い mean?
大間違い is a Japanese noun meaning “big mistake” in English. It is written as 大間違い in kanji, おおまちがい in hiragana, and oomachigai in romaji. This word is part of JLPT N3 vocabulary.
Example sentences
それは大間違いだ。
That's a big mistake.
彼を信じたのが大間違いだった。
Trusting him was a huge mistake.