Dreams dictionary: Costume
Dreams dictionary: Interpretation 1
To dream that you are wearing a Costume demonstrates that you are putting on an exterior toward others. You would prefer not to uncover your actual self and are not being totally legitimate with individuals around you."
Dreams dictionary: Interpretation 1
To dream that you are wearing a costume indicates that you are putting on a facade toward others. You do not want to reveal your true self and are not being completely honest with people around you.