およそ

およそ is an adverb with two main uses: expressing approximation ("about, roughly, approximately") and expressing totality or extremity ("completely, at all"), often in negative or emphatic contexts. It is more formal and literary than やく約 or だいたい, making it common in written Japanese, news, academic texts, and formal speech.

Approximation – "about, roughly, approximately"

When placed before numbers or quantities, およそ indicates that the figure is an estimate rather than exact.

In this usage, およそ is interchangeable with やく約 or だいたい, but carries a more formal tone. It is frequently seen in news reports and official statements.

General scope – "generally, on the whole"

およそ can also mean "generally" or "broadly speaking," used to describe things in a sweeping or comprehensive way.

In this usage, およそ emphasizes the full range or totality of something – "all conceivable X" or "X in general."

Negation – "not at all, completely (not)"

When used with a negative predicate, およそ intensifies the negation, meaning "not at all" or "completely not." This usage is quite emphatic and literary.

This negative pattern conveys strong emphasis – stronger than simply saying ぜんぜん全然 in casual speech – and is characteristic of formal or written Japanese.

Comparison with similar expressions

• やく約: Formal but concise; used almost exclusively for numerical approximation. Often placed directly before a number (約３０人).
• だいたい: More casual and broader; used in everyday conversation for approximation.
• およそ: More formal than だいたい; uniquely capable of expressing totality/negation meanings that the other two cannot.