costumed

verb

1. (form-of, participle, past)simple past and past participle of costume

adj

1. (not-comparable)Wearing a costume; disguised.

   “For a livelier scene, head here on Friday or Saturday night, when mass beer-sculling (chugging) and yodeling are accompanied by a brass band and costumed waitresses ferrying foaming beer steins about the atmospheric, cellarlike space.”