必ひつ需じゅ

noun which may take the genitive case particle 'no', noun

necessary; essential; indispensable

Used primarily as a noun modifier (〜の) or in compounds; often refers to things that are essential for a purpose. Not typically used as a standalone predicate like 必要.

• 水みずは生いきるために必ひつ需じゅのものだ。

  Water is essential for living.

• この道どう具ぐは登と山ざんの必ひつ需じゅ品ひんです。

  This tool is an essential item for mountain climbing.