This is a tricky question to answer from a personal perspective. In law, accepting the outcome of something, such as a legal argument or a judicial decision, must be absolute and unqualified so that further arguments about them are shut off. After all, continuing to disagree about something in law is not a true acceptance of it at all. The same goes for personal forms of acceptance to a degree. If you claim to accept something like the death of a loved one, for example, but you know that you don't in your heart of hearts, then it is not really something you have come to accept at all. In turn, this will mean you cannot proceed through the stages of loss and grief, certainly not in a full way that will end up with a positive resolution to such emotions. That said, accepting things in a partial or nuanced way is the reality for many, many people so you should not chide yourself if you cannot accept all situations fully. Appreciating this about ourselves is a form of self-acceptance, after all.