落単

• 読み: らくたん
• ローマ字: rakutan
• 漢字の分解: 落 (drop/fail) + 単 (from 単位, credits) → dropping credits, failing a course
• 発音: /ɾa.kɯ.taɴ/

意味

Failing a course and losing the credits; dropping a unit due to poor grades or attendance.

落単 is student slang combining 落とす (to drop/fail) and 単位 (credits). It's the nightmare scenario for university students — failing a course means the credits don't count, which can delay graduation or require retaking the class. Common causes include poor attendance, failing the final exam, or not submitting required assignments. The word is used casually among students but carries real academic consequences.

例文

1. 出席足りなくて落単確定だわ、マジ萎える。
2. 必修を落単したら来年もう一回取り直しだよ。
3. 落単しまくって4年で卒業できなかった人知ってる。

使い方ガイド

場面: university, friends

トーン: dismayed, self-deprecating

正しい言い方

• 落単だけは避けたいから最低限出席はしてる。 (I attend the bare minimum just to avoid failing the course.)
• 落単したことある？俺3回あるんだけど。 (Have you ever failed a course? I've done it three times.)

避ける言い方

• 教授に「落単させないでください」は図々しい (Asking a professor 'please don't fail me' is presumptuous — earn the credits instead)

よくある間違い

• Confusing 落単 with 落第 — 落単 is failing a single course, while 落第 is failing/being held back entirely

起源と歴史

Abbreviation of 単位を落とす (to drop/fail credits). A piece of student slang that emerged naturally on university campuses as a quicker way to express the dreaded experience of failing a course.

文化的背景

時代: Modern university slang, ongoing

世代: University students

社会的背景: Universal among university students

地域メモ: Used across all of Japan. A staple of university life conversation, especially around grade announcement periods.