防腐|ぼうふboufu[0]heiban (flat)

1. nounpreservation from decay; prevention of putrefaction; embalmment; antisepsis

• Antonym腐敗ふはいNeutralAntonym (neutral). Refers to rotting or spoilage of matter, and figuratively to political corruption — the opposite of 「防腐」, which is about preventing decay.
• Antonym腐食ふしょくWrittenAntonym (written/formal). Refers to rusting of metals and corrosion of objects — the opposite of 「防腐」, which prevents decay.

Use 「防腐」 for preventing decay, as in 「防腐剤」 or 「防腐処理」; 「腐敗」 is for rotting and spoilage (also political corruption), 「腐食」 for rusting and corrosion of metals.

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

1. 腐敗ふはいを防止ぼうしすること。