Accouterment and Getup

Accouterment noun - Clothing that is worn or carried, but not part of your main clothing.

Getup and accouterment are semantically related In some cases you can replace term "Getup" with "Accouterment", this nouns are similar.

Getup noun - Clothing chosen as appropriate for a specific situation.

Accouterment and getup are semantically related in dress topic. Sometimes you can use "Accouterment" instead a noun "Getup".