静しず心こころ無なし

ku-adjective (archaic)

uneasy; restless; restive

Archaic 'ku' adjective describing a state of mental unrest or inability to stay calm. Not used in modern Japanese; found in classical literature.

• 古こ典てんでは「静しず心こころ無なし」と書かいて心こころが落おち着つかない様よう子すを表あらわした。

  In classical texts, '静心無し' was written to express a state of unease or restlessness.