浩こう瀚かん

na-adjective, noun

voluminous; bulky; extensive

Literary word describing books, documents, or collections that are physically thick or contain a vast amount of content. Often used in formal or written contexts.

• 彼かれの書しょ斎さいには浩こう瀚かんな百ひゃっ科か事じ典てんが並ならんでいる。

  His study is lined with voluminous encyclopedias.

• この浩こう瀚かんな資し料りょう集しゅうは研けん究きゅう者しゃにとって貴き重ちょうだ。

  This extensive collection of materials is valuable for researchers.