What term is used to describe designs that are completely filling an arrangement?

The term that describes designs that are completely filling an arrangement is "Dense." A dense floral arrangement features a compact and full appearance, where the use of flowers, foliage, and other elements creates a visually rich and abundant look. This style often boasts a variety of textures and colors, contributing to a lush overall design.

Dense arrangements are typically characterized by minimal gaps or empty spaces, making them visually striking and impactful. This design principle can be essential in floral design for conveying a sense of opulence and vitality and is often favored for events where a strong visual presence is desired, such as weddings or large gatherings.

The other options do not accurately convey the idea of fullness: "Overflowing" suggests an excess beyond the intended design, "Saturating" is often used in contexts like color rather than form, and "Cramped" usually has negative connotations, implying that there is an uncomfortable tightness rather than a carefully crafted fullness. Thus, "Dense" is the appropriate term for arrangements that fill an arrangement thoroughly and attractively.