太平・泰平|たいへいtaihei[0]heiban (flat)

1. na-adjective, no-adjectivepeace; tranquility; tranquillity
2. na-adjective, nounhappy-go-lucky

• Synonym平和へいわNeutralThe most general word for peace, not limited to society; unlike old-fashioned 「太平」, it is not tied to the image of a stable, war-free land.
• Synonym平穏へいおんWrittenWritten style. Describes days or life that pass safely and uneventfully, as in 「平穏な日々」; it leans toward everyday life rather than the state of the land.
• Synonym平静へいせいWrittenWritten. Refers to a calm state of mind or a settled situation, as in 「平静を装う」; 「太平」 speaks of the world at peace, not one's composure.
• Synonym安穏あんのんWrittenWritten. Means living in peace and quiet, free of trouble, as in 「安穏な暮らし」; it centers on a settled daily life rather than the whole land.
• Synonym無事ぶじNeutralNeutral and very common in speech: safe and sound, nothing bad happened, as in 「無事に着く」. It is about outcomes, not an era of peace.
• Synonym平安へいあんNeutralNeutral. Means being safe and untroubled, but is rarely used on its own; it also names the Heian period (794-1185).
• Synonym安泰あんたいWrittenWritten. Means being secure and free from threats to one's standing, as in 「家の安泰」; it stresses the safety of a person, family or organization.
• Synonym天下泰平てんかたいへいWrittenA four-character idiom for a land at peace with no war anywhere; it can also be used jokingly of someone carefree. Written style.
• Related静穏せいおんWrittenWritten and not frequently used. Describes quiet, calm conditions, most often the weather or the sea, rather than the state of the land.
• Related穏やかおだやかNeutralNeutral and common in speech. Calm and gentle, most often of the weather or someone's temperament; a softer, everyday word than old-fashioned 「太平」.
• Related安らかやすらかNeutralNeutral. Describes a peaceful, untroubled state that leans toward one's inner self, as in 「安らかに眠る」.
• Related静謐せいひつWrittenLiterary and written. Deep stillness and calm, as in 「静謐な空間」; it can also describe a settled, peaceful state of the world.
• Related安寧あんねいWrittenWritten. Refers to society being peaceful, stable and orderly, as in 「社会の安寧秩序」; it concerns public order, not everyday life.
• Antonym戦乱せんらんWrittenWritten. An antonym: war that throws a region into disorder. It stands at the opposite pole from 「太平」's stable, war-free land.
• Antonym騒乱そうらんWrittenWritten. An antonym: riots or disturbances that break down social order, the very opposite of the settled, peaceful land 「太平」 describes.
• Antonym動乱どうらんWrittenWritten. An antonym: large-scale social upheaval, even war, that upends the order of the land — the opposite of 「太平」.

For peace in general, use 「平和」; for safe, uneventful daily life, 「平穏」 or 「無事」. 「太平」 is an old-fashioned way to say the land is stable and free of war, as in 「太平の世」 and 「天下太平」; for upheaval, 「戦乱」 or 「動乱」.

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

1. 世の中よのなかが平和へいわなこと。