discretionary
adj. 自由决定的，酌情决定的；代表委托人全权进行投资的
例句
Magistrates were given wider discretionary powers.
地方法官们被赋予了更广泛的酌情决定权。
《柯林斯英汉双解大词典》
You may be eligible for a discretionary grant for your university course.
读大学课程可能会有资格获得学校自行决定是否发放的助学金。
《牛津词典》
Of course, I have discretionary income.
当然，我有可自由支配的收入。
