まじか

• 読み: まじか
• ローマ字: majika
• 発音: /ma.dʑi.ka/

意味

An expression of disbelief meaning 'for real?' or 'seriously?' — one of the most common reactions in texting.

まじか is the casual question form of マジ (maji, seriously). It is the texting equivalent of 'are you serious?' or 'no way.' In hiragana, it feels softer and more natural in text than the katakana マジか. It works as a standalone reaction to surprising, shocking, or unbelievable news — both positive and negative. One of the most frequently sent single-word messages in Japanese texting, alongside え and うそ.

例文

1. まじか、あの店閉まったの？
2. 彼氏できた？まじか！おめでとう！
3. まじか…それはきついな。

使い方ガイド

場面: texting, casual conversation, LINE, social media

トーン: surprised, disbelieving

正しい言い方

• まじか、知らなかった (For real? I had no idea)
• まじか！やばいね (Seriously!? That's crazy)

避ける言い方

• 上司に「まじか」は失礼 (Saying 'majika' to your boss is rude — say 本当ですか)

よくある間違い

• Using まじか in formal situations — it is casual register only
• Not varying between まじか (neutral surprise), まじか！ (excited), and まじか… (dismayed)

起源と歴史

From マジ (maji, seriously, from 真面目/majime) + か (question particle). The casual question form has been standard since the 2000s. The all-hiragana version まじか became the texting default.

文化的背景

時代: 2000s-present casual speech

世代: All ages in casual settings

社会的背景: Universal casual

地域メモ: Used across all of Japan. One of the most common single-word reactions in texting.