勤きん惰だ

noun

diligence and indolence; attendance and absence

A formal, somewhat literary noun contrasting diligence/attendance with laziness/absence. Often used in workplace or school contexts, similar to 勤怠 (きんたい) but less common. The cross-reference to 勤怠 suggests it may be a less frequent variant.

See also: 勤怠

• 勤きん惰だを記き録ろくするシステムを導どう入にゅうした。

  We introduced a system to record attendance and absence.

• 社しゃ員いんの勤きん惰だが給きゅう与よに反はん映えいされる。

  Employees' diligence and indolence are reflected in their salaries.