From Meriam Webster, the hypocrite means:

1
: a person who puts on a false appearance of virtue or religion
2
: a person who acts in contradiction to his or her stated beliefs or feelings

For example, you have your opinion. Then, in the beautiful time, you change your mind. What kind of beautiful time? Look at this picture below.

Hahaha, so it’s not easy to keep our principle, in this crazy world…