Dream about drowning in tub is a sign for sadness or seriousness. You are feeling unprepared. You are ready to accept and face reality. It means a malicious plan set forth against you. You are about to venture into parts of your personality which have been forgotten or have thought to be dead.
Drowning in tub dream is a symbol for your past relationships. Perhaps, the disturbing events may have left a strong impression in your mind. You are wasting your time and energy on frivolous pursuits. It states your own insecurities and self-doubt. You need to invest a little more effort before your goals come to fruition.
If you dreamt about drowning in tub:
You have reached a slow-down in the road. You are at a point of suspension. The more you struggle, the more you will be bound to a situation that you are not comfortable in. Let go of control and be patient. Wait this one out. Your time will come.