無事|ぶじbuji[0]heiban (flat)

1. noun, na-adjectivesafety; security; peace; quiet
   彼かれの無事ぶじを知しらされて、部長ぶちょうは安堵あんどのため息いきをついた。↗

   Informed of his safety, the manager breathed a sigh of relief.
2. noun, adverbsafely; without incident; successfully
   積み荷つみには無事ぶじ届とどきました。↗

   The shipment has reached us safely.

   我々われわれは無事ぶじ使命しめいを果はたした。↗

   We carried out our mission successfully.
3. noun, na-adjectivegood health
4. nouninaction; ennui

• Synonym安穏あんのんWrittenWritten/formal prose. Living out one's days in peace and quiet, as in 「安穏な暮らし」; 「無事」 is about no mishap occurring.
• Synonym安全あんぜんNeutralNeutral. The absence of danger; applies to facilities and systems. 「無事」 stresses a safe outcome after the fact.
• Synonym安泰あんたいWrittenWritten/formal prose. A nation or family's position being secure and stable; 「無事」 is a person or a matter being safe.
• Synonym大丈夫だいじょうぶNeutralColloquial. 'It's fine, no problem', with an extremely wide range of uses; 「無事」 stresses a safe, successful outcome.
• Synonym平安へいあんWrittenWritten/formal prose. Peace and freedom from trouble; also the name of the Heian period. In daily speech say 「無事」.
• Synonym太平たいへいWrittenWritten/formal prose. The world at peace, or a carefree life; 「無事」 usually refers to a person or a particular matter being safe.
• Related平穏へいおんWrittenWritten/formal prose. Describes a life or situation that is calm and free of turmoil, as in 「平穏な日々」; 「無事」 stresses that what you feared never happened.
• Related平静へいせいWrittenWritten/formal prose. A calm mind or situation, composure, as in 「平静を装う」; 「無事」 is about nothing going wrong.
• Related静穏せいおんWrittenWritten/formal prose. A quiet, peaceful environment; in everyday speech say 「静か」 or 「穏やか」. 「無事」 is about being safe and sound.
• RelatedのどかNeutralNeutral. Poetic: a leisurely, peaceful scene such as the countryside or a spring day. 「無事」 is about no accident or mishap occurring.
• Related落ち着いたおちついたNeutralNeutral. Prenominal form: composed and settled, or subdued and tasteful in color. 「無事」 is about coming through safely.
• Related穏やかおだやかNeutralNeutral. Mild and calm weather, temperament, or situation, as in 「穏やかな海」; 「無事」 is about nothing going wrong.
• Related円満えんまんWrittenWritten/formal prose. Harmonious family life or relations, as in 「円満解決」; 「無事」 stresses safety and things going smoothly.
• Related和平わへいWrittenWritten/formal prose. Ending a war and achieving peace, as in 「和平交渉」; 「無事」 is a person or a matter being safe.
• Related安心あんしんNeutralNeutral. Feeling relieved and at ease. 「無事」 describes objective safety; 「安心」 is the subjective absence of worry.
• Related大丈夫だいじょうぶNeutralColloquial. 'It's fine, no problem', with an extremely wide range of uses; 「無事」 stresses a safe, successful outcome.
• Related安らかやすらかWrittenWritten/formal prose. A peaceful state of mind or sleep, also in the eulogy phrase 「安らかに眠る」; 「無事」 is about being safe.
• Related沈静ちんせいWrittenWritten/formal prose. Commotion or market conditions calming down, as in 「インフレが沈静する」; 「無事」 is about nothing going wrong.
• Related穏便おんびんWrittenWritten/formal prose. Settling a matter quietly so it does not blow up, as in 「穏便に済ませる」; 「無事」 stresses a safe outcome.
• Related静謐せいひつWrittenWritten/formal prose. An elegant literary word for stillness and quiet, used in literature or of world affairs; 「無事」 is the everyday word for being safe.
• Antonym有事ゆうじWrittenWritten/formal prose. Antonym of 「無事」 in the peacetime-vs-emergency sense: war, unrest, or another emergency breaking out.
• Antonym危険きけんNeutralNeutral. Antonym of 「無事」 on the safety–danger axis: danger, lack of safety.
• Antonym多難たなんWrittenWritten/formal prose. Antonym of 「無事」 on the smooth-vs-troubled axis: beset by difficulties and misfortune, as in 「前途多難」.

Use 「無事」 for coming through safe and sound or getting something done without a hitch. For inner relief say 「安心」, and in casual speech 「大丈夫」 covers 'no problem'. For calm weather, seas, or situations use 「穏やか」, for an untroubled life or situation 「平穏」, and for absence of danger 「安全」. The rest are mostly written/formal words for peace and quiet (静謐, 安泰, 太平…) or narrower nuances like harmony (円満) or settling things quietly (穏便); the antonyms are 有事, 危険, and 多難.

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

1. 何事なにごともなかったこと、心配しんぱいしていたことが起おこらなかったこと。
2. 何事なにごともなく、つつがなく。