Dizzying Designs is a term used to describe intricate and complex patterns that are often used in art, fashion, and architecture. The two crossword solutions for this term are WHIRL and OPART. WHIRL is a five-letter word meaning to spin or rotate rapidly, while OPART is a five-letter word referring to optical art, which is a type of abstract art that uses optical illusions to create patterns. Together, these two words accurately describe the dizzying designs that are often seen in art, fashion, and architecture.