たいてい・大抵・大ていtaitei[0]heiban (flat)

1. na-adjective, adverb, nounmostly; ordinarily; usually; generally
   Ｘ記号きごうは数学すうがくではたいてい未知数みちすうを表あらわす。↗

   The symbol "x" usually stands for an unknown quantity in mathematics.
2. na-adjective, adverb, nounprobably
3. no-adjectivemost; almost all
   夜よるはたいていの人ひとが寝ねる時ときである。↗

   Night is when most people go to bed.
4. no-adjectiveordinarybefore a neg. form
5. na-adjectiveproper; appropriate; moderateusu. as 〜にする

• Synonym大方おおかたWrittenWritten/formal prose for the greater part or most of something, as in 「大方の予想」; it overlaps with 「大抵」's 'mostly' sense but has a more bookish feel.
• Synonym一通りひととおりNeutralNeutral. About going over something roughly but covering the whole, as in 「一通り目を通す」; it stresses a rough once-over, not the usual state of things.
• Synonym通例つうれいWrittenWritten/formal prose for what is customary or the general rule, as in 「通例として」; it frames things as convention rather than degree.
• Synonym概してがいしてWrittenWritten/formal prose for 'broadly speaking', as in 「概して良い」; a summarizing word for general characterizations.
• Synonym一般いっぱんNeutralNeutral. Points to the general public or the ordinary, as in 「一般の人」; it is about what is common to people at large, not how often something happens.
• Synonym通常つうじょうNeutralNeutral but leaning formal. Means business as usual when nothing special comes up, as in 「通常営業」; nearer to 'normal, regular' than 'mostly'.
• Synonym多くおおくNeutralNeutral. Centers on quantity — many, or the majority, as in 「多くの人」; it counts how many or how much instead of saying 'usually'.
• Synonym大概たいがいNeutralNeutral. Means 'mostly' like 「大抵」, but also tells someone to show restraint, as in 「大概にしろ」.
• SynonymほとんどNeutralNeutral. Means 'almost, nearly all', as in 「ほとんど終わった」; it sits closer to 'all' than 「大抵」 does.
• Synonym主におもにNeutralNeutral. Means 'mainly', as in 「客は主に学生だ」; it gives the main component or share, not how often something happens.
• Synonym主としてしゅとしてWrittenWritten/formal prose counterpart of 「主に」, 'chiefly, primarily', as in 「主として」; same proportion sense, higher register.
• SynonymだいたいNeutralNeutral and the commonest everyday choice: 'roughly, on the whole', as in 「だいたい分かる」; broader than 「大抵」, covering approximations too.
• Synonym一般にいっぱんにWrittenWritten/formal prose for 'generally speaking', as in 「一般に言えば」; states what holds widely, special cases aside.
• Synonym大多数だいたすうNeutralNeutral noun for 'the great majority', as in 「大多数の賛成」; it names the overwhelming share of a group, not a usual state.
• Synonym大半たいはんNeutralNeutral. Means 'more than half, the better part', as in 「大半が賛成」; it quantifies a share over half, where 「大抵」 is looser.
• Synonym大部分だいぶぶんNeutralNeutral noun for 'the greater part', as in 「大部分の人」; a proportion term that stays noun-like, unlike the adverb-friendly 「大抵」.
• SynonymおよそWrittenWritten/formal prose for 'about, roughly', as in 「およそ百人」; it estimates quantities rather than describing what usually happens.
• Synonym総じてそうじてWrittenWritten/formal prose for 'on the whole', as in 「総じて好評」; it sums up an overall verdict rather than saying 'usually'.
• SynonymおしなべてWrittenWritten/formal prose for 'on the whole, generally', as in 「押しなべて高い」; it gives an across-the-board overall verdict rather than saying 'usually'.
• SynonymおおむねWrittenWritten/formal prose for 'roughly, for the most part', as in 「概ね順調」; it hedges a statement as largely true.
• SynonymあらかたWrittenWritten/formal prose for 'mostly, nearly all', as in 「あらかた片付いた」; it sits nearer 'all' than 「大抵」 does.
• Related往々おうおうWrittenWritten/formal prose for 'often, in many cases', as in 「往々にして」; it marks a recurring tendency rather than a general state.
• Related原則としてげんそくとしてFormalFormal phrase for 'as a rule, in principle', as in 「原則として禁止」; states what holds unless there is an exception.
• Related全体にぜんたいにNeutralNeutral. Gives an overall assessment, as in 「全体に良い出来」; it judges the whole picture rather than stating frequency.
• Related全般的にぜんぱんてきにWrittenWritten/formal prose for 'overall, on every front', as in 「全般的に低調」; it surveys things taken as a whole.
• AntonymまれWrittenWritten/formal prose antonym: 'rare, seldom', as in 「稀なケース」; for things that hardly ever happen — the opposite pole to 「大抵」.

「大抵」 is the default for 'usually, most of the time'. For 'roughly, on the whole' the everyday word is 「大体」, with 「概ね」 in formal prose; for 'almost all' use 「ほとんど」; for 'the greater part' 「大半」 or 「大部分」; for 'mainly' 「主に」; for 'in principle' 「原則として」; for 'rare' 「稀」. Written/formal prose alternatives — 「大方」「総じて」「通例」「概して」「往々」「押しなべて」「全般的に」「一般に」「凡そ」 — raise the register; neutral ones like 「一通り」「多く」「通常」「大概」「全体に」「大多数」 each add their own angle.

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

1. おおよそ。おおかた。大概たいがい。大体だいたい。
2. 恐おそらく。多分たぶん。
3. 事柄ことがらの主要しゅような部分ぶぶん。あらまし。
4. （多おおく打ち消うちけしを伴ともなって）一通ひととおり。普通ふつう。並なみの事柄ことがら。
5. （多おおく打ち消うちけしを伴ともなって）一通ひととおり。普通ふつう。並なみ。
6. ほどほど。大概たいがい。