欠けっ講こう

noun, noun or participle which takes 'suru'

cancellation of a lecture or class

Used in academic contexts when a scheduled lecture or class is called off, often by the instructor or institution.

• 明日あしたの講こう義ぎは先せん生せいの都つ合ごうで欠けっ講こうになりました。

  Tomorrow's lecture has been canceled due to the teacher's circumstances.

• 欠けっ講こうが続つづくと、試し験けん範はん囲いが狭せまくなることもある。

  If cancellations continue, the exam coverage may become narrower.