inattentiveness
Please log in to see your next review.
Please log in to see your card accuracy.
Please log in to see your progress.
少しの油断が事故につながります。
A little carelessness can lead to an accident.
油断しないで最後まで頑張ってください。
Do not let your guard down, and do your best until the end.
勝てると思って油断しました。
I thought I could win and became careless.