chiffon flowy dress Rihoas Straight Neck Spaghetti Strap Jacquard Floral Ruched Convertible 2-Way Mini Dress, Red / XS Chiffon Neckline Honey floral long sleeve waist

The vintage-inspired tulle skirt creates fun and frothy movement with every step you take in this gorgeous dress

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Also, some people take the meaning of semi as more casual, and you can assume that semi-formal means more formal casual attire

Bohemian (Boho): The Free-Spirited Aesthetic Defining Features : Flowing fabrics, earthy tones, and artistic influences