乱世|らんせいransei[1]atamadaka (head-high)

1. nountroubled times; turbulent times

• Related無法むほうWrittenWritten register. Points to disregard for law and violent, outrageous behaviour, as in 「無法者」; 「乱世」 is a whole era thrown into disorder by war.
• Related無政府むせいふWrittenWritten register. Means the absence of government, and by extension anarchism; more abstract than 「乱世」, which evokes an era of war.
• Related無政府状態むせいふじょうたいWrittenWritten register. The disorderly state when government fails or is absent; a political-science term, not a word for an age of war like 「乱世」.
• Related無法状態むほうじょうたいWrittenWritten register. A state where law has broken down, as in 「無法状態の街」; narrower than 「乱世」, which spans a whole era of war and disorder.
• Related無警察むけいさつWrittenWritten register. A situation with no police and collapsed order; used far less than 「乱世」.
• Antonym太平たいへいNeutralNeutral register. Peace reigning over the land; the direct opposite of the wartime chaos of 「乱世」.
• Antonym治世ちせいWrittenWritten register. A well-governed, peaceful era; the standard antonym of 「乱世」 in historical writing.

Use 「乱世」 for an age of continual war, as in 「戦国の乱世」. For a state where law has collapsed, pick 「無法状態」; for peaceful times, 「太平」 or 「治世」. The 無- words describe breakdown of government or order, not an era.

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

1. 戦乱せんらんなどにより乱みだれた世よ。