腐り|くさりkusari[3]odaka (tail-high)

1. nounrottenness; decay; corruption

• Synonym腐食ふしょくNeutralCorrosion or rusting of metals and other materials; stresses chemical erosion. Unlike 「腐り」, it does not refer to food going bad.
• Synonym腐乱ふらんNeutralRotting and festering of corpses and the like; stresses advanced, severe decay. Common in news reports.
• Synonym腐敗ふはいNeutralDecay or spoilage, but also figuratively the corruption of politics; frequent in written prose and more formal than 「腐り」.
• Synonym腐朽ふきゅうNeutralThe rotting away of wood, metal and other materials; stresses the material itself decaying and is not said of food. 「腐り」 typically describes things spoiling.
• Synonym腐れくされCasualRotting or spoiling; also a colloquial, derogatory prefix meaning worthless or contemptible, as in 「腐れ外道」. 「腐り」 is not normally used as a prefix.
• Antonym新鮮しんせんNeutralFresh — the opposite of 「腐り」 as in food going bad; said mainly of vegetables, fish and the like.

Everyday talk about food going bad uses 「腐る」. In written prose, 「腐敗」 covers decay and also political corruption; 「腐食」 is for metal corrosion, 「腐朽」 for wood rotting away, and 「腐乱」 for severe rotting of corpses.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 輪状りんじょうのものを繫つなげて、紐ひもや綱つなのような線せん状じょうにしたもの。
2. 1のうち、特とくに鉄てつなどの金属きんぞくでできたもの。
3. （比喩的ひゆてきに）結び付むすびついたもの。
4. 腐くさること。
5. 腐くさっているもの。
6. 一通ひととおりの区切くぎり。