The tag alias #81814 disguised -> disguise is pending approval.
Reason: If someone is disguised, they must have a disguise. Any exceptions I can think of would be more accurately tagged with hiding or similar.
The only reason I can think of for keeping these two tags separate would be, for example, an image where someone is holding a disguise, but not wearing one. In that case, there is a disguise in the image, but no-one is disguised. I would welcome feedback from anyone who considers this distinction valuable.
As of when I type this:
1.2k posts are tagged disguise -disguised.
7 posts are tagged -disguise disguised.
11 posts are tagged disguise disguised.