N1
をいいことに
💡Meaning
To take advantage of
📝Usage
普通形 + のをいいことに
⚠️Notes
Indicates taking advantage of a convenient situation to do something improper. (e.g., 先生がいないのをいいことに、生徒たちは騒いでいた。 - Taking advantage of the teacher's absence, the students were making noise.)