必要

hitsuyou
adjectivenounBeginner
formalinformal

necessary; required

この書類は必要ですか?

Is this document necessary?

必要なものを買ってきてください。

Please buy the necessary items.

💡

Can function as a noun (必要) or adjective (必要な)

Collocations

必要があるto be necessary必要条件necessary condition必要な措置necessary measures

Synonyms

Antonyms

Related Phrases

必要以上にphrase
more than necessary

💡Pro Tip

Adjective vs. Noun Usage

Add 'な' when using as an adjective (必要な資料), but omit it when used as a noun (この資料は必要です)

Gold Rule

Formal Contexts

In business or formal writing, '必要' is often used to indicate required documents or procedures

📖Word Origin

From Middle Chinese '必要' (bit-yew), meaning 'necessary'

📝Usage Notes

Often used in formal contexts and business communication. Can be used as a standalone noun or as an adjective with 'な'

Word Breakdown

must, necessarily
root
+
important, essential
root
和英辞典