"Be attired in" is a classic phrase meaning to be dressed in a certain way or to wear particular clothing. While it's a great expression, sometimes we need to mix things up and use new vocabulary. Luckily, there are plenty of synonyms that can be used in place of "be attired in". Some alternatives include "be clothed in", "wear", "sport", "drape oneself in", "decked in", or "garbed in". These phrases can add a touch of sophistication and elegance to your writing or speech. Experimenting with different vocabulary is always a good idea to keep your language fresh and diverse.