Dressed in opposing or contrasting clothing or attire, especially in ways that clash or oppose each other.
From counter- + attired (dressed, from Old French atirer meaning to dress or equip). This is a rare, archaic usage found primarily in older English literature.
Shakespeare's plays often used 'counterattired' characters to show moral opposition—the villain dressed in black while the hero wore white, a visual language of character that modern costumers still use instinctively in theater and film.
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