一ひと回まわり小ちいさい

expression, i-adjective

a size smaller; one size smaller

Describes something that is noticeably smaller, often by about one standard size or degree. Commonly used for clothing, objects, or abstract comparisons.

• このシャツは一ひと回まわり小ちいさいサイズをください。

  Please give me this shirt in a size smaller.

• 新あたらしいモデルは一ひと回まわり小ちいさくなった。

  The new model has become a size smaller.