Discombuzled

I thought this was already a word but I guess it isn't so decided to make it one.

It means the same thing as discombobulated but in a past tense, rather than in the present or future one.

After the unexpected announcement at the meeting, I was completely discombuzled.

During my first driving lesson, I was so discombuzled by all the controls and rules.

When I got lost in the new city, I was utterly discombuzled until I found a map.