This is the 910th most frequent Japanese word.
次第
"次第" (shidai) means "depending on," "as soon as," or "circumstances."
次第 is used to express that the outcome depends on something specific.
成否は努力次第です。
The success or failure depends on the effort put in.
次第 is used to convey adaptation or adjustment based on a condition or preference.
ご都合次第で日程を調整します。
We will adjust the schedule according to your convenience.
次第 is used to indicate an immediate action contingent on the completion of another event.