唯ゆい一いつ無む二に

noun which may take the genitive case particle 'no', na-adjective, noun

one and only; unique; unparalleled

Emphasizes absolute uniqueness; there is nothing else like it. Often used in formal or emphatic contexts.

• 彼かれは私わたしにとって唯ゆい一いつ無む二にの親しん友ゆうだ。

  He is my one and only best friend.

• この作さく品ひんは唯ゆい一いつ無む二にの価か値ちがある。

  This work has unparalleled value.