一いっ糸し

noun

single thread; single strand; single string

Refers to a single thread or strand, often used in literary or figurative contexts to emphasize a very thin or delicate line. Common in set phrases like 一糸まとわぬ (stark naked).

• 彼かの女じょは一いっ糸しまとわぬ姿すがたで現あらわれた。

  She appeared stark naked.

• 一いっ糸し乱みだれず行こう進しんする。

  They march in perfect order, not a single thread out of place.