This is the 13498th most frequent Swedish word.
utklädd
Dressed up or disguised.
In this sentence, 'utklädd' is used to describe the state of being dressed up in a costume.
Jag var utklädd till pirat på maskeraden.
I was dressed up as a pirate at the costume party.
Here, 'utklädda' is in plural form to match the subject 'barnen' and signifies the themed costumes the children wore.
Barnen var utklädda till superhjältar och prinsessor.
The children were dressed up as superheroes and princesses.
In this example, 'utklädd' describes the act of being in costume as a personal preference of the subject.