大丈夫|だいじょうぶdaijoubu[3]nakadaka (mid-high)

1. na-adjectivesafe; secure; sound; problem-free; without fear; all right; alright; OK; okay
   彼女かのじょは今いまのところ大丈夫だいじょうぶです。↗

   She is all right at the moment.
2. adverbcertainly; surely; undoubtedly
3. interjection, na-adjectiveno thanks; I'm good; that's alright
   いや、大丈夫だいじょうぶだ。↗

   No, no, that's okay.
4. noungreat man; fine figure of a man

• Synonym安全あんぜんNeutralRefers to objective freedom from danger, as in 「安全な場所」; 「大丈夫」 is a subjective judgment that things are fine, and it also serves to decline offers.
• Synonym無事ぶじNeutralMeans coming through with nothing bad happening, as in 「無事に着いた」; it looks back on an outcome, while 「大丈夫」 judges the situation at hand.
• Synonym安心あんしんNeutralDescribes the feeling of relief or peace of mind, as in 「安心して」; 「大丈夫」 is a judgment about the situation, not an emotion.
• Synonym危なげないあぶなげないNeutralMeans steady with no sign of danger, as in 「危なげない勝利」; it often describes performances in games or contests.
• Related確かたしかNeutralPuts the weight on accuracy and trustworthiness, as in 「確かな情報」, whereas 「大丈夫」 centres on a situation being all right.
• Related安心あんしんNeutralDescribes the feeling of relief or peace of mind, as in 「安心して」; 「大丈夫」 is a judgment about the situation, not an emotion.
• Related十分じゅうぶんNeutralMeans enough or sufficient, covering quantity, degree, or conditions, as in 「十分な説明」「これで十分」; 「大丈夫」 focuses on things being all right.
• Related無難ぶなんNeutralMeans safe in the sense of unlikely to fail or offend, as in 「無難な選択」; it carries a bland, conservative nuance 「大丈夫」 does not.
• Related確実かくじつNeutralStresses certainty and reliability with no room for error, as in 「確実な方法」; it is a more objective judgment than 「大丈夫」.
• Related結構けっこうNeutralAlso declines an offer, as in 「もう結構です」; the tone is more formal and can sound stiff, while 「大丈夫です」 is more easygoing.
• RelatedいいCasualColloquially covers 'it's fine' and 'no need', as in 「もういい」; it can come across as blunt, where 「大丈夫です」 sounds softer.
• Related安定したあんていしたNeutralDescribes something steady and unchanging over time, as in 「安定した収入」; 「大丈夫」 is about being okay, not about stability.
• Antonym危ないあぶないNeutralThe direct opposite of 「大丈夫」: it signals danger, or that something is unsafe or about to go wrong.
• Antonym不安ふあんNeutralThe opposite of 「大丈夫」: it names the feeling of worry or unease, the very state 「大丈夫」 denies.

「大丈夫」 is the everyday word for 'it's fine' or 'no problem', and it also politely declines offers. Use 「安全」 for objective safety, 「無事」 for coming through unharmed, 「安心」 for relief, and 「結構です」 for a formal refusal; colloquial 「もういい」 can sound blunt. 「確実」 stresses certainty, 「十分」 sufficiency, 「無難」 a safe but bland choice, and 「危なげない」 a steady performance; 「危ない」 and 「不安」 are the opposites.

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

1. 心配しんぱいのない様子ようすだ。
2. さしつかえない。かまわない。
3. 心配しんぱいのない様子ようす。
4. 十分じゅうぶんに。優ゆうに。