1The state of not attending something one was expected to attend, such as a class or meeting; absence. The opposite of 出席 (attendance).
風邪で学校を欠席した。
I missed school because I had a cold.
会議を欠席する場合は、前日までに連絡してください。
If you're going to miss the meeting, please let us know by the day before.
欠席が多いと単位を落とすことがある。
If you have too many absences, you may fail to earn credit for the course.
彼は出席の返事をしたのに、当日は欠席だった。
He replied that he would attend, but on the day itself he was absent.